added some tooltip help for assigning DNA sequences, and added two ne…

…w custom scaffold sequences from Tilibit

lib/src/dna_sequence_constants.dart

@@ -11,13 +11,17 @@ class DNASequencePredefined extends EnumClass {
   static const DNASequencePredefined M13p7560 = _$M13p7560;
   static const DNASequencePredefined M13p8064 = _$M13p8064;
   static const DNASequencePredefined M13p8634 = _$M13p8634;
+  static const DNASequencePredefined Tilibit_CS3_L = _$Tilibit_CS3_L;
+  static const DNASequencePredefined Tilibit_CS4 = _$Tilibit_CS4;
 
   //XXX: change this if we change the variants
   static BuiltList<String> get display_names => [
         'M13 (p7249, standard variant)',
         'M13 (p7560)',
         'M13 (p8064)',
         'M13 (p8634)',
+        'Tilibit CS3-L',
+        'Tilibit CS4',
       ].toBuiltList();
 
   static display_name_to_variant(String display_name) {
@@ -52,6 +56,10 @@ class DNASequencePredefined extends EnumClass {
       return _m13_p8064;
     } else if (this == M13p8634) {
       return _m13_p8634;
+    } else if (this == Tilibit_CS3_L) {
+      return _tilibit_cs3_l;
+    } else if (this == Tilibit_CS4) {
+      return _tilibit_cs4;
     } else {
       throw AssertionError('should be unreachable');
     }
@@ -433,3 +441,163 @@ CTCTAAATCGGGGGCTCCCTTTAGGGTTCCGATTTAGTGCTTTACGGCACCTCGACCCCAAAAAACTTGATTTGGGTGAT
 GCCCTGATAGACGGTTTTTCGCCCTTTGACGTTG
 """
     .replaceAll(RegExp(r'\s'), '');
+
+final _tilibit_cs3_l = """
+CATTAAGCGCGGCGGGTGTGGTGGTTACGCGCAGCGTGACCGCTACACTTGCCAGCGCCCTAGCGCCCGCTCCTTTCGCTTTCTTCCCTTCCTTTCTCGC
+CACGTTCGCCGGCTTTCCCCGTCAAGCTCTAAATCGGGGGCTCCCTTTAGGGTTCCGATTTAGTGCTTTACGGCACCTCGACCCCAAAAAACTTGATTAG
+GGTGATGGTTCACGTAGTGGGCCATCGCCCTGATAGACGGTTTTTCGCCCTTTGACGTTGGAGTCCACGTTCTTTAATAGTGGACTCTTGTTCCAAACTG
+GAACAACACTCAACCCTATCTCGGTCTATTCTTTTGATTTATAAGGGATTTTGCCGATTTCGGCCTATTGGTTAAAAAATGAGCTGATTTAACAAAAATT
+TAACGCGAATTTTAACAAAATATTAACGCTTACAATTTAGGTGGCACTTTTCGGGGAAATGTGCGCGGAACCCCTATTTGTTTATTTTTCTAAATACATT
+CAAATATGTATCCGCTCATGAGACAATAACCCTGATAAATGCTTCAATAATATTGAAAAAGGAAGAGTATGAGTATTCAACATTTCCGTGTCGCCCTTAT
+TCCCTTTTTTGCGGCATTTTGCCTTCCTGTTTTTGCTCACCCAGAAACGCTGGTGAAAGTAAAAGATGCTGAAGATCAGTTGGGTGCACGAGTGGGTTAC
+ATCGAACTGGATCTCAACAGCGGTAAGATCCTTGAGAGTTTTCGCCCCGAAGAACGTTTTCCAATGATGAGCACTTTTAAAGTTCTGCTATGTGGCGCGG
+TATTATCCCGTATTGACGCCGGGCAAGAGCAACTCGGTCGCCGCATACACTATTCTCAGAATGACTTGGTTGAGTACTCACCAGTCACAGAAAAGCATCT
+TACGGATGGCATGACAGTAAGAGAATTATGCAGTGCTGCCATAACCATGAGTGATAACACTGCGGCCAACTTACTTCTGACAACGATCGGAGGACCGAAG
+GAGCTAACCGCTTTTTTGCACAACATGGGGGATCATGTAACTCGCCTTGATCGTTGGGAACCGGAGCTGAATGAAGCCATACCAAACGACGAGCGTGACA
+CCACGATGCCTGTAGCAATGGCAACAACGTTGCGCAAACTATTAACTGGCGAACTACTTACTCTAGCTTCCCGGCAACAATTAATAGACTGGATGGAGGC
+GGATAAAGTTGCAGGACCACTTCTGCGCTCGGCCCTTCCGGCTGGCTGGTTTATTGCTGATAAATCTGGAGCCGGTGAGCGTGGGTCACGCGGTATCATT
+GCAGCACTGGGGCCAGATGGTAAGCCCTCCCGTATCGTAGTTATCTACACGACGGGGAGTCAGGCAACTATGGATGAACGAAATAGACAGATCGCTGAGA
+TAGGTGCCTCACTGATTAAGCATTGGTAACTGTCAGACCAAGTTTACTCATATATACTTTAGATTGATTTAAAACTTCATTTTTAATTTAAAAGGATCTA
+GGTGAAGATCCTTTTTGATAATCTCATGACCAAAATCCCTTAACGTGAGTTTTCGTTCCACTGAGCGTCAGACCCCGTAGAAAAGATCAAAGGATCTTCT
+TGAGATCCTTTTTTTCTGCGCGTAATCTGCTGCTTGCAAACAAAAAAACCACCGCTACCAGCGGTGGTTTGTTTGCCGGATCAAGAGCTACCAACTCTTT
+TTCCGAAGGTAACTGGCTTCAGCAGAGCGCAGATACCAAATACTGTTCTTCTAGTGTAGCCGTAGTTAGGCCACCACTTCAAGAACTCTGTAGCACCGCC
+TACATACCTCGCTCTGCTAATCCTGTTACCAGTGGCTGCTGCCAGTGGCGATAAGTCGTGTCTTACCGGGTTGGACTCAAGACGATAGTTACCGGATAAG
+GCGCAGCGGTCGGGCTGAACGGGGGGTTCGTGCACACAGCCCAGCTTGGAGCGAACGACCTACACCGAACTGAGATACCTACAGCGTGAGCTATGAGAAA
+GCGCCACGCTTCCCGAAGGGAGAAAGGCGGACAGGTATCCGGTAAGCGGCAGGGTCGGAACAGGAGAGCGCACGAGGGAGCTTCCAGGGGGAAACGCCTG
+GTATCTTTATAGTCCTGTCGGGTTTCGCCACCTCTGACTTGAGCGTCGATTTTTGTGATGCTCGTCAGGGGGGCGGAGCCTATGGAAAAACGCCAGCAAC
+GCGGCCTTTTTACGGTTCCTGGCCTTTTGCTGGCCTTTTGCTCACTTAGCAAGAGCCGCACGACGACCAGAGGCCAGTTATCCAGAGTTAGGATACCTCA
+ATGTGCATCCGCTCGGTTCTAAGGACATTATTTCAGTCCTTTAAGATCTCCCGTATAGAAGCCTCACGTTAGGGGGCGCCGTGCCTTCACGCCCTCCCAT
+TTAGGAATACCTTGTCTCCGCCGTCTTTATTCAGTAGCCCTATGCATTACGATGTGGCGCTTCCCCCGCGTGGGCGCAGAAATTTACTGAGGCGGATTCG
+AAACGACTGTGAGGGCAGGATAGGTGAGCAGGCACTGGCACGTAATCAACCAACGGACTCACCCGTGTGCAGGCCTAAAAACAGCCCTCGAAGGGCACTT
+GGATATGAATGAACCCACTTGTTTTGACTCGTGGAGGCGTGGTTTTATTACTGTGCTCAGTTAACGCCGCATGAATTTAGCTCTGATCACCGTAAGGGTA
+ACTGCACTAGACATGTTGTGGGCATTTAAGTCCTGCAGTATCTTTTTGTTAGGTGGAACGGCCTAGGGGTACCTTCCGTGAGAAACTCCCAGATGATGCA
+TGTTCGAGTACTTGTGAAATGGATGGTCGCATCCCCTCCTCTCACACATTACACTGTCTCGCGCGGGTTGCGTCTTGACCGGTACAAGTTGTGTAACCTT
+ACACCTCTAGAAACATTTTAGCAGTCGCTCCAATTGATACCACGACCTCAGCGCGCGTTGGGAGACCGTTGCCAAACCTAGTTTTCATGTTTTCCTTCAA
+ACGTGCGATATAATTCCTCGCACCTAGCCGCCTAGCTGAGAAGTGTTATATAGGTCACTTGAAAAGAGTAGGTTCAGCATATGGAACTTGGGGGTTTGTT
+CGCTATGCGGTAACGCGTGCCCCTCTGACTTGTCGATGACTCCCGGCGCGGTTTCGATGCGGGCATGTAATCGTCGCGAACCTTTACTCAGGCTATAAAG
+CGGCATAACCAGTTGTAACTAACAGAATACAGTTCTCTCTCAACGGCAACTACAAAATAGCATACTTGAGACCTACGACAGTAGGGTCGCGTCAACCTGT
+GCAAGAAAAAGCTAGAAGAGCTGAATTCTGATAATTACAGACCCATACACCGATTAACCCCGACTTATAGGCGTAAGTGGTGTCCCTTGCATGACCCAGG
+CCATATCTATGCCCCCATATAAACCAGGTCGACTTCCCACTGATCGAACCAATAAGGAATGATCGCAGCCCATAAAGTACGGTTCAACGATTGCTGAGCT
+TCAGTGAGGTTAACAGCGGCTGGTGCCCGTACATTGCCTCGTCGATTAGCCTAGTGAGCGTCGACAGGAGCTTTAACTCCTACTTTCATACGCCACCGCA
+CAGACTTCATTGACCACGTATCTGAGACTCCTTGTAAACTGACTACTCCAGCTCCATCAACAATCTTGAAGAAGTTCTATCCGATCACGGTTATCGCGAG
+TCTTAGCGTAGCCAATGCTGGGCCGTAGCGTCTACTTAACGGAAAGAAGGGTGAAAGCTGCCACAGAAAATAAATTACTATTTACATTTGTAAGACAAAG
+TTAGTATGGTTAAATACTGGCTTAGTCTGCGGGAAACTTAGCCATACGACTTGGTTTGCCTATCGTTACAGCGTACGACCCGTTCACCAATCGCATTTGC
+GATGCAGATAACAACTCGGAAGCTGTATGACCTCTCGAGCGTTAGTCGCAGTTTTAGTAGAGAAAACCCGATAGCCAGGCGTTCAAGCCTATTCCCCATT
+ATGCGTCCGCTATTGACTTCGCTGGACCCTCGCGGAGTCGGCGACAAATAACATAGAGGATATCGTCACGGGATAGCGCTCTCCATTGGAATTGTACATG
+AGAGTTGGACTGCCGAACGCATGGGTGGAGCAGCCAAGCACCCGGGGACTACGAAGGTTTACGCGCATGTGTTACCTTTCAGCCGAAGAGAAGGTCGGTG
+GATCTCGCTCTTTCGGAGCTCATACTCCTCATGCTACAATGTTAAAACGCAAAACCTGACTCAATCTATTGCCCGGTCGTTGGCTCGCATGCTTCCTCCT
+TCTGCCCCAATCCGACATGACTGAGATGCGCTTGATAGCAATGACCAAGATAGTCGTCTAGATTCATCTTTAGCGACGTGACTTAGATTTGCAGAGGAAA
+CGGGGTGACTGTAGATTATGGCAGTTGATATCTCTCCCTGTTATGGAGTGCGGAGGCTGAGTGCTAATGTTGCCCCGCAAAGCAGTGTCGTTAGAAGTAT
+ATATGCAGTGGCGGTGTTCAATCAGGATCAGCCCGTGCTGATTTCTTTGTTGGGGAGAAATGATATTGGGCGGGCTCAAACTTCAACTCCGACGGTCGAA
+TGCCGGGTTCTTCGATTCCTGTTTATTGCGACGCACGCTCTATTTGCTGGATTACCTGCATTCACCGAATCGCCTAATATACGTCTAATCACCTGTCAAT
+TTAATCCTGGTATACTATCATCCAGGGTGGTCTAAAGTCCCATGAGCCACGATGATTAATTTTGGTATGCACCAAGGGGAGGTGGCTAGCGATCCGAGCC
+GAGCTGCGTCACCGGTTGGAAACACCTGCGCTACCCTCCAGTGGTCGGAATTCGCGTATCAGCTTGTCCGGGTCTACGTACACGCAAGACAGATTTCATC
+ATACCCCCTGGGGATTCTTAGAGACTATATTTCGTCCGATGTCCACCAACATAAGCGAGGCTACCTCTTGGAGGAGCATTCTTGTATCCCCCTCATAGAA
+AGACCCTGTGACGTCTTAACAATAGGGGCGACCTAGATCCGTTTTCGTATTTGACCTTAGTGGTAACCGCAGTACAACGGGCCTGAAGATGGTAGTCGAG
+TGCCAACACCAAAGAGGCTCTAGCCCAGTGTTCGGGCGTCGTTCTACGGTACGTCCATGACGGCAGCAGCTACCAGATTCCGGCTGCCCATCATGGCATT
+ATAGTTTATGAAGAGTGAATCGTAGCTAATTCAAGGCAGTAACGTTCATAGCCGACAGCTGACGCTGGGTTGTTTACCCGTAATTCTTCTCCACTCTGCT
+TGAGCGGTGAGGACCCCTTAATCTGCTCGACATCCACTTTCCATGTAGGACGACAACGCTTGGACAATCCAATAGTTAGATAGCTAGTCGGACTTCTGGC
+CCGATCTAAACTCAAATCGCGGGATCTTCTGTCATTCGTACTGATGCCGACCCAATTTCAAAAACGTAGGCGCACCCACAGGCGAGGTACTTATTTATGT
+ATTGCTCTGTATAAGCCTTCGCCTCGAGTCCTAAGCAGCGCTTTGGCTTCGGTAAGGCCTCATCACTTCAGAAACGCCATCCGTCGTAAGCGTGTGTGCC
+TCCCTAGAATCATAGGCCACTCGCTACTTCGTGGGGACAGGCCGCGAAATGCTAGACTCATAAGAACATACGGCTCCTAATGGCTGGGACGTCGGTTGTC
+CCGAAGTGGCTTGTAGGCTGTGTGTCAAGTCCAGAACCACTCCGGACGGCCAGCAGACGCGGATAATCCCGGAAATAGGTAGGATTGACGAACCGGATAC
+TAGGATGCCCTACGGGGCGTAGATCTGGCTCCGCTTCTGACGAGAGTATCATAATTGGCCTTGTTACATCCTGTAAGTCTAAGCTAAGGCGCCAGGAGAT
+GGGGTAGGTGTGCTTACTGGTACGCCGATACGGACACGAGCATCCAACAGTACTATACCTAATCTCTTATATTCACATGATAACGCACAAACTCGTTATT
+GTATAGCACGAACAGATATATTGCACGTGATTGGACCGAAAATGACTTTGGACGCCAGCTTAAAAGGCGGTTGCTTCAATTCGATGGGTATCTCATCCGA
+ATGGACAGTTGGTAGGCCCCTTCAGCGATTATACCGCGACATTCTCTGTCCTAGCAGGTCAGGGAATTTTCCCTAAGGGCTCGTATCCACGCATCAATCG
+ATGCGGACATGGTCAGATTGCATCTGCGTAGGAACAGTTTCGTTGCGGCAAGGAACCGCTTGCGGATCACACCATATTTGGATCCCCGAGCAAGTCTTCT
+TGGGTTAGAGGCATACGTAAGAAGCACGCCGTTTGCGCGACTTTCGAGCCTAACCTGGCAGGGTTTCTTAATTGTTTGATGTACTCTATCTGGAAATTCG
+TGATATGCCAGAGCGGCCCGGCCCCGGATTAGTCACACGATCTGAACTTATCCCAGGTAGTGTTTAGCCGTGTAGGGATATTCGTTTTGTGGTTGTGCTG
+CGGAAGTTACTACAGCAGGGGACCCGAGGTCCGAACTTTAAACTTTTGTCAGTCGGTCAGTATGTAAGCCCACCATGGAGGTCTTCACCTTGCTGCTACG
+TCATTATCGTGCCGGATGTTCCGTAACTCAGAACTACCGAGAAGCTATTATTCCGCCAACCCCTCGTAGAGTCTGAGGGATCAAGAGACATTTATCGACT
+CAGTGCGTAATACCGTTCGAAGCGATAGATCAATGGTGCTCCGTCAGGACACTATGACTAGAACAGGTATGTCAAACCGATAAGGCAAGCATAGTCAACG
+TGTCATGAGTGACACTTAGGTCCTATAGTGCGACAGACACGCCAAGACCATAGACAATGAGGTGACAACTAGATAAGCTCGATCCTTACTTGCGCACACT
+CCCCCAGCTAACCAAACATCAGATGGACCTGTACACTAGTCTTTTACCTAGGAGAACCTCGTTTATCTTATTAGCGGGGAGCAACAACGAGCTATAGATG
+CCACTAGCGTGGCCCTGCAAGTTATTCGAGATGTCAGGCAACCTCTGTTGCGAGAGCTCGCTGCACCCCACTCACTCCTGCTTCGTCTTCCAAGGTCCCA
+AGCCGATCCATGCTCTCAGGGGTGGGTCCGTGTTGCATAAAAGTCTCCAAAACTCTTAAGGAGAGGCGCGCACGGATATACATCGCGTTTAGGTTATTAT
+GTCCCACGGCATGGCCAAATGAGTTCTTGAGTAGCAAAAGGTGCACGAGACCCCGGTGCCTAAGATTTTATACGCTTCATCGGGAATCACTGCCCGACAA
+TTGCTTTCGTGTTAATAATTTCGACGTAACGGTGCTGTCTAACATCGAGACTGCAATTACCCCGCCAGACCTTTGCACTTCCACACTAATTTGGTCGATC
+TTTGCTTAACCGGGAACTATGTAGTCTATATGAGAATATTGAGCATAAGGTGTCAGCCAGCCTTTATCCTTGAGGCAGATCAGGTCTATTCGCTCAGAGT
+AAGATGCTAACACCCAGTAGATGACGACGTTTAATTAGGGCCGAGAGACCAATGTCACG
+"""
+    .replaceAll(RegExp(r'\s'), '');
+
+final _tilibit_cs4 = """
+CATTGACCGGGAGCGCCCTGTAGCGGCGCATTAAGCGCGGCGGGTGTGGTGGTTACGCGCAGCGTGACCGCTACACTTGCCAGCGCCCTAGCGCCCGCTC
+CCGGGATCGGAATTCCGGCCATCGCCCTGATAGACGGTTTTTCGCCCTTTGACGTTGGAGTCCACGTTCTTTAATAGTGGACTCTTGTTCCAAACTGGAA
+CAACACTCAACCCTATCTCGGGCAAGCTTGTCACGCTGATATTCTACACGTAAGGCAAGATCATGTTCGCGGGTACAAACTACGTATGCTAAAATTTACA
+TAGCCAATCATAGAGTCCGGAGAGTGAAAAGTACCGATTCGGCAGTCGCACGGCATTCTCCGTATTTCTCAACTCGAAACGCCGTACACAAGGCGTGCAC
+TGGTATTACAAGTTGGCGTCGAGCGCTTACCGTTACTTGCGAGGCCTCTCGCGTCTAGACGAGGTCCTGAGAATCGTATAGAATGGCAACCGCGGGGGAT
+ACTGGGATCGTTGTCCGATCTGTAAGATCCTTTTCACGCTTGGCTCGTTCCTAGTCGTATCGTTAAGTGAGGAGGTACCAGGATGTCTTTTTTGACTCCA
+AGGCACGGACACCCTGCATTTTGTCAGCAGTCCCCACTTTGTCCACTGACAGTATCATTGTTGGAGCGTCTGTGCTCTTATTACGATGCCATTATAGCGC
+TACTGTCTATTCAAGACGCTAGCGACCCGGTCCGCTGAAATCTATCGTCTGGGCATTTCACACGCTATGCGAGTATCCGCGTAGCGTGCTACTTCCCCCG
+TGCAGCGATCAAGATTCCCTCGGGGAAGTCTTTCCGGGCAGGGACGCCACTAAGGACGATATGGCAGCCATGTATCCAAAGGATAACTACCCCTTCGTCA
+CGTCATTCATCCGTGTTGCTGAGACCACCCCTCTACCGAATTATCCTGGGGGGTCAGTCTAGCCGATGGCTGCGTGATGCTACCCTACGCGTACCACAGC
+TTTTCGTGGTCCCGGGACGACCGCCCAAGGTTGGTATATCTTATACGGTGAGGCAATTTCAGCTGCGCCTTAAAACACGAACGACTTGTAATGAATCTCG
+CAAGCGCCTGAGTTGGATTGTAGTAAGTACACGAGCCGAGTGAGATAGAACTCCCATCTGAGGTCGCCGAGATCCCATGGTTAGGGCGCCGATAGCCTTG
+AATCATCTGTGGGTGCATACTTGAGGATCAGCATCCGCTATTACTTCGAATGACTTAAATATAAGACGATCGAGCCATATAATGGGATAAAGTGTATTGA
+ACTAGAGTAAACAGTGTTAATTATTATTTGTTTGACAACTATCCCTCTGTTTAGGAGAGCATGGCGTATATTCATTTTCGAGGAGTGTAGATCCGGCGAG
+GACACATACAAGGTCAATCACATTTGTAGGCCAACCCGAAGGCATAGCGTAGGGCCGAATAAAAGTCACCGCGTGAGACTGACCATTCCTAAGGCTCGCG
+CGTCAACCTCATAGTTGCTTAAGAGACTCCCTGACCCCTATTATGGCTCATGGTCCACAAGAATGATCGCTCTGGAAACGGCTGCACGGTTGCAACAAGA
+CCAATTTGGCCAAATCTGATACGAGAAGTGGGGGAGACATGCCTGATCCTATTTCGTCTTACCCATAAATAAATTACCGACACGATGATCAGTGACGCAG
+TATTTACGAGTCCTGCTGAATCCGGAAGGTCGGACTCGTGTGCCACACCAGAACGCATACGTCAAACGGATATTAGACCGTTGCGTGGTGCAAGGATCCA
+ATGTCGGGATGGACACTTTAAGCCGGTTTGAGAGGGTAGCAGTGTGTAGGACGGACCATGTGACTATCACCGGTACTACGAGGGTGGTGTTTGTTCATTA
+TGAGTAGTGCACGACGGTGTGCTTATGACGACAACATTGTCATAGGCTCAACAGCTGGTAGTAGCTCTGACGCCCGTTGATAGCAAAAAGGTTTACAACA
+ACTGTTTGCGCGCACGAAGTACTATACATTTAACAAAGTAAATGAAAGCCAGCCCCGTTATGATGAGCCGCAAAGTGCCGGAATAACGAAGAGAAGCCCG
+GCGCGCGCCAATAGCTAACGTGATCTTTTCTGAGCTAGATGGCCTGACACCTGGTACCTCCTCACATATTCCACATGTGCGGCCACAATGGCCCAATGGT
+GGGAGAAAATACTTAGTGAGTGACATGAGACACTGCGATCGGTCGGTAACGGTCGTACAGGAATATTATCGGACGCACTGAGTCAAGAGATGTATTATAA
+ACACTAATCAGAGAGATATTTCCCGGACATATGGATAGCGAGAGGAGACTTTGCATGGGTATAAGCCATTCGACGATGGTCTACGGCCATACAGATGCCG
+CCTTCCAGTTCCAGAATAGGGAGCTCGTGATTGGATCACAGATTAAGGGCTAACCGGCCAATGAGATGAAGCTGGGCCTCGGTTTATAGTTAACATAACG
+TTACCGCTCATCTAGGCATGCCGGTGCACAAAAATTGAAAACCTGGAAGTTGAGGTATCTCAGCAAATGGCTACAAATTGGCAATGATGCCTAAGACAGA
+AGGTACTTGGCCTATGCTCCGTCGATCTTAAGCTCGAGCTAAATTGTTCTGAATAGAAAGGCTTGCAAGCTATCAATTGGGACAGCGAGTTTCCTCGGAC
+CCTCCCAACGTAGGAAGGGAACGCTAAGCTGCCCTGGGACCCGTTCAAACCGTCATATCGCATTTGCCAATTAGTAATCCTCAGCTATACGCATGCGATT
+TTAGCGTTAACTGGGTGTACATCTCCTGCAACGCCTACTAGAACCCCGAATGTACTAAAGTTCGTAGAGTGGTATGACCCATTCAGGGATGCCCTCTCAG
+TGTACGAGCTGGACAACGACGCGTTGGCTTTATTCCGAGTTGCCTTGGGTTGGAATACGCGAGCACAGTTGTAGCCGTAACTATAACTGTCCGCGCATCC
+TGAAGACACACCGCTTTAACGTAATCAACTTTGGTTCGTTTCCCAGTATAATATCATCGGATACATCATCATACCTGGCGGTAGATTTGACCCTAACCTG
+TTTCTGCTTGTCTTGATGCATGACATTAATCTCCACTTGTGTGCGCTATCTGCCTTTATCCCCAAGTTTGAACGCGTGCCGAAGCGGCAGACTAGCCCCC
+TTATTCAGTATGAAACGTCGCGCAAATAACATTATCTAGAGCTTCATAAAACTAACTCAAGCGGGACACGTCGGGTTACCATTGAGCACGCGCTGTTCAC
+TCGGGAGGGGCCTGGTGACCAAACAAAACCCAAGCCCTTGGTGATTAACGGAATCGAGGCAGAATTTAAGTCGTTGAACAAACCAACCATGCTATTTTTC
+TACCATGGGGCACTGCTATGGCGGATGCTTACGGAGACCCAGGGAGGAGCAGCAAGCAGGGTATTGTGATGTCGTGACACAACAGTCAGAAAGAACTGAA
+AAAAATGTAGTGTAATAGACTTACGCTCTACTATCTAAACGGGTAAGTTACCTGATGATTCACCGACGGGCCGGCCTTGCCGGGTGCCTTAGGCGCTAGA
+CAAAGCAGTACTTTGAAGGGGGTAACCTTATGTCAGTTGACTTGACCACGATACACTAGATTAGTCCTTTGTTGCCATGGCCACTCTTCCGAACCTCGGC
+ACAGGACAATTTAGGCCCTTCATGCTCTATCATAAGGCGATTCATGGCACCAGGGCAATAGTTTCTCCCAGAAGCGTAAGCATATTACCTCACGGAAGAA
+AAATAGGCACAATCCGCCAGATTTTCTTATGGTTGCGCTGACGAACTCAGGGCGACCGGACTGGACTAACGAGTGGAAATATGCGTCTGAAGCAAAGATT
+ACTGAATGGAGGATTGACGCTCGGATCTGAACCAGATAGCTCCGGTGGACATTGACCGGGCTTGGGAAATTAGCCTGCGCAGAGGACTACCACTACCTGC
+AGGCTTCTCCAATTCTGACTAAAACCACGCGGCCGGGAACACGTTGAGAAAGCGGATTACGTTCCGGATGAATTTGAGCGATTAAAATGCAGTCTGAGAG
+AAATTTTGGGGCGCAACGAGCAGACGCCGACCTTCTTCGGGCATATGCTGTTACGTAGAAGGCCTACACCGAGCCTGTTAGGACCTGTATCACTAGTACC
+TAAAAAAGCTTAACCCCTGCTCCCGGTAGCTGTGTTCTCTTCAATTTTAATCACCACACAGCGCATAAGTCTCAATAAACGAACAGTAGCACCTATAAAA
+TCGCAGGTCCAATATACCTTCAGGCGGGATCCGCACTTGGTTAAATCCGAAAGGTAGCCCGATGACAGATAAACCAGCTTCCCACTCGCCCGGGCGCGTA
+AAAGCGAGCGGAACTGGTGTCTAAGGTCCCAAGAAGGGTACCGCGCTTCTTTGATGTTAACCGTGTCCCTACTGCCCATGATCTCGAACCGGAGGACGTT
+AATGTATAAAGGGCATCGTTCGTGTTACACGGCTCGGTATTTTCAATAGATATACAACTTATCTTCCTGGAGGGAAGGATTATCATGACCGACCCACTAT
+TCGGGGTCTCGTCTACTCTTAATCCAGCTAGCTCGGCCGATCCTCGCAGTTAATCGTGAGGGCCAAGAGGATGCAGAGTGTTGATGACCTTTTGCTCCTA
+GCTGGCTAATAGCATTTAGATTCTAACGGCCCCATATGTACAGACCCGACAAAAGTTAGGTATAGGCGTTTGCCTCTGCTCGGGTCCATTCTTCACCCCC
+AACCTAGTAGACTCATGCGTATGAGGGGGACGGCAAATTAACTCGGCTGGGTCACTTATGCTTTGTGTCAGATATCTATAATTAAATGTCACTGTGCAAT
+CTTGCGTACTTCAACGAAACTGCGTCACTATATCGGGTGAGTTTATCGTGCTGGGGTGCGGGCGTGTGTGAAACTTAGGGGAAAGCAAGAGTTGAAAGTC
+GCTCAAAAACCGCAAGGTGATAAGATGGTACTCTGAAAGGGACTGTTAAACGTTTATTTCATCTCGTAATACGTGGTTGACCTCAGACCTGACGTCGTTC
+TGTTCTATTAGTTGATCTGCTGTACACTGGGGCTACGGTTCCATCGATGGGTTAAGGCCGACGACTATTAAGTTTCGATATAACACAGGTCACGCCCTCG
+TACGACTCTGTCTGCAGATACTATGAAGAGTCACGACATCCGACAGACGACGAAGCTAAGAATTACAGTCTTCTCAGGTTGCTACGAAGGACATGTACGT
+TGCTCTCGTGGCAGTTTAGTATCGGTGTCCAACTTGTCCCCTTTTATGTATGATCCGTTCCCAAATGCCTCCACGAGGATATCGTAAATACACAGACTTC
+TTGGGGGTGTTGGCAGATTCAGCGCGTGGGGTCCCCGACGTCACAATTACTAGGCGGCGTTGTGGGATTGGCCCTGCCGGCATAAAGCTCCCCATCAGTT
+ATGTTAGAGGAAACCCGTGGTAGGGTGCTGCCAGTCCAGTCGAATAGTCGCCCAGGCACTCTATACTGACGGTCTATATGCCTTCTGCCGACTAAGTGCG
+GAGATGGAAGATCTTCGCGATCTCTTGGCGCTCTTCGTGCGTTTTGAATGAAGTAACGCAGACCGAAGTCGGGCCACCACGTCTAATACAAAGGGGTACG
+CCCCCGGTGTAAGGAACATGCAGCCCGTCGCAAACCCTCGCTGAGTGGCGTGAATCGCTGGAGTAATGTGGTTTTGTAAGCCTGGCCAGCATTGAATATC
+CTCCTTCGATCATGTTTTATTAGCGCGAGGGCGTCAGGCATCTGGCGATCCCCTAAGTCCGTGCGGTAATCGAACACTGAACTCGCTTGTTTACGCCAAG
+GAAAGTTTTGGTACATTACTCGAGTGTCTCCTCTTACATTGCACACTTCCGCAGGACTTTATGGGACTCAGAGTTATCTCCCCTGAGCAAACACACATGC
+GGGAGAGACCGCGACTGAGGAATTAGGGACCTCTGGCTTGTGCAGTTCGGCGCTGGTCTTCATCGCACTATCGGCGTAATGCTTCCATAGATTGAGATTG
+TGCCGCGGAAATCCCACCAGTTGCGAAATTCGGTCTTGCACCCCACAGAGGGCAGAGCACTAGGGAAACACCGGGGACCGCAGTGAATGCCAAGTGTTTC
+ATTCTGTAGACGTCCCCCTAGAAACAATCAGCCCTATGGAGCTGAAGGTGTATGTAAATCTTAGTTTGCACTTAGAGTTTGGGAGTCGGTCCCTCCGCTT
+ATCCATTACCCCGTACCTTTACTCCTGTTGCGGGGAGCCACATCAATGGGTGGAGCGTTGCACGTGGCTGAACGTATCCTAATTAGAAGCTCATTTGGTC
+ACACAAAGAGTGCATGCACTACGGGGCTGCTCATACATGGCTTAATTGACTGCCTAGCAAGGCTAGCCTACCGTCCCTGGATTAGCAATAACCAGGTCGT
+CCCGACTCGGAACAGACATAAACTTCAGCCGTGGACGTGTGGGGCCCGTGAAAGATAATCTGCGACACCACCATTAACACCTTCCGGCCGTCGGTGACAA
+ACAGAGAATGTGCTAGTAACTTGCTTTTTCATGATACTTCTATGGTCGCAGCATAGGTGCCAAACGAGGCGGTGAAGATAGTCTGCTAAGTATAGTCACT
+CAGTTTCAGTTCTTGAACCCGGAAAGGAGTTGTCGAAATACCCGTAGATGATGGGCTAGGAAATGACGTACGGTCAGAGCCAAGCAATTAAGAAGCATCG
+GTTCTTAAAGGTCTCTCCGCGAGACTACATGATTGATGGCGAGAAACCTCCAAAATAATTCTTGCCCGCACAGCCTCGCGGCTCAGATCGGCCAGACACG
+GTCCAGGAGTAGGCGACGCCTGCTTAGAACGGCGAACGCCAGCTGAGGCCGGTATGCAGGAGATTCGAAAAGGGTTTGGAGCCTTCGCAACTAATTTTCC
+GACCGAGAGAGGCCACGAAATGGGCCCAGACGTTCATAGCTTTAGAGAACATTTTACTTACCTAGCCAGTTAGATCGACCTCCGTGAGTCGCGGAGGCCC
+GAGCATCATTTCCTTAATATTCGCAGAAGTTTAATTCCTTGTGGACCCAAACCTTTCACCTACCAGCGAATTTCCAGCACTCCGCCCCAATCCTTGGCAC
+GCAAAAGCACATAGGGTAATGGATTCGCGTGTAAAGTAGAAATAGAGCGCGCTCCATGAACTTGGATAAGTAATATAGCCGCGAAGACCGGTTGGGGTAT
+CAGTCGGCTAAACAACGCACCCGCCACGTGCATCGACACAGTGAGCTGTAATCTAGTATTAGGAACTATTGCATTATTGACACTATGGGTCCTCTAACCC
+GCGTCCATACCCTGTTCGAGTCGACTTAGCTTGCGCACTCATCCATATTTATGAACCGTACTCGCGACGTGCGATATCAAACTCACAACTCATTACACAC
+GACTGGCCCGCGATACCCCCGAGGTAGGCAAAGCGCTCACACTACAGGCTGTTGTCT
+"""
+    .replaceAll(RegExp(r'\s'), '');

lib/src/view/design_main_strand.dart

@@ -1172,11 +1172,24 @@ calls position 0. For example, for the circular sequence AACCGGTT:
 - rotation 3: CGGTTAAC
 - rotation 4: GGTTAACC
 - ...''');
-  items[idx_assign_complements] =
-      DialogCheckbox(label: 'assign complement to bound strands', value: options.assign_complements);
+  items[idx_assign_complements] = DialogCheckbox(
+      label: 'assign complement to bound strands', value: options.assign_complements, tooltip: '''\
+If checked, then assign the complement of the DNA sequence to all strands that
+are bound to this one. The typical use of this option is that you assign a 
+sequence such as M13 to the scaffold strand, and this option will automatically 
+assign the complement of the M13 sequence to all staple strands bound to 
+the scaffold.''');
   items[idx_disable_change_sequence_bound_strand] = DialogCheckbox(
       label: 'disallow assigning different sequence to bound strand with existing sequence',
-      value: options.disable_change_sequence_bound_strand);
+      value: options.disable_change_sequence_bound_strand,
+      tooltip: '''\
+If checked, then if a bound strand already has a DNA sequence assigned, this 
+option will prevent you from assigning a different DNA sequence to it.
+This is useful if you have assigned DNA to some strands, but not others, and you 
+want to use the "assign complement to bound strands" option to the unassigned 
+strands, and you believe that the sequence being assigned is compatible with the 
+already-assigned strands, but want to have scadnano check this for you so you 
+don't accidentally change an existing sequence.''');
   items[idx_predefine_sequence_link] = DialogLink(
       label: 'Information about sequence variants',
       link: 'https://scadnano-python-package.readthedocs.io/en/latest/#scadnano.M13Variant');