@*~RSC_HELP_SEQUENCE_GROUPS A sequence group (SG) is a user defined set of sequences. Strap provides two operations on SG: To define a group of sequences, the respective sequences need to be selected. In the introduction tutorial, different methods to select sequences are discussed. Selected sequences are indicated by a blue background in the alignment row header.
Once the sequences are selected, the user can define a sequence group by one of the following two methods.

1st Method: Sequence lists

Right clicking one of selected sequence names brings up the context menu. The first menu item opens a list representation of those sequences. Below this list are buttons that act on the list: Select/unselect and view/hide sequences.

2nd Method: Shortcut keys

Select some sequences. Focus the alignment pane by left-click. Typing capital letter G followed by a letter or digit defines a group of sequences. Each group is identified by a letter or digit. Sequences in a group can be acted upon: Sequences that are not shown are listed in the object tree at the left panel. To see the tree, drag the right divider to the right. Use Drag-And-Drop or the context menu to render hidden sequences visible. *@