How do trim the History from multiple files at once?
By default, a SnapGene sequence file contains embedded copies of all of the ancestral files that have contributed to the sequence. The ancestral sequences can be viewed and restored via the History view. Extensive History trees can result in very large SnapGene files. Trim a files "History" to reduce the file size.
To trim the history of a file currently open in SnapGene see - Trim History.
To set a limit on the size of any file History see - Set the Ancestor Limit for History Trees.
Start The Batch Trim Histories Tool
Click File → Batch Trim File Histories....
Browse and select the files for trimming then click Open.
Click the dropdown to select the trim level. Alternatively, enter a level value into the field provided.
Click Trim to trim the History information for all files.