The items in this menu are used to modify the current selection (see the section called The Selection in Chapter 2).
Reset the selection so that nothing is selected then select all the features in the active entries.
Reset the selection so that nothing is selected.
Ask the user for a feature key, reset the selection so that nothing is selected, then select all the features with the key given by the user.
Reset the selection so that nothing is selected, then select all the CDS features that do not have a /pseudo qualifier.
Select all the features that have the same key as any of the currently selected features.
Extend the current selection of bases to cover complete open reading frames. Selecting a single base or codon and then choosing this menu item has a similar effect to double clicking on a base or codon (see the section called Changing the Selection for details).
Ask the user for a range of bases, then select those bases. The range should look something like this: 100..200. If the first number is larger than the second the bases will be selected on the forward strand, otherwise they will be selected on the reverse strand.
Invert the selection - after choosing this menu item the selection will contain only those features that were not in the selection beforehand.