Sequence lists make it easier to manage large numbers of sequences by grouping related sequences into a single document. When you import ﬁles containing multiple sequences you will be asked if you want to store those sequences in a list. To existing sequences in your database into a list, or combine two lists into one, select the sequences or sequence lists you want to group and go to Sequence → Group Sequences into a List. Note that this copies your sequences into a list and retains the original sequence documents.
To extract sequences from a list, select the sequence(s) you want to extract and go to Sequence → Extract Sequences from List. This will copy each sequence out of the list into a separate document, while retaining the original sequence within the list. To remove a sequence from a list entirely, select it and click the Delete button on your keyboard, or go to Delete under the Edit menu.