The Add Sub-Range tool, located in the Sequences section of the Toolkit panel, can be added to a sequence that is already in the Visual view whether the sequence already has an existing range specified or not.
If this tool is added to a sequence without a range, it sets the ends of the sequence (i.e. specifies the first subsequence). If the tool is added to a sequence that already has a range specified, it adds a new subsequence.
- Input the desired range in the Specify a range of the sequence area (see Set sequence ends).
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