If there are instructions with names inside double quotes, then these will be put out as Delila name instructions. The searchfeatures file can be concatenated with other features to create the features file for lister.
Many commands now are capital letters to avoid confusion between commands.
The complement sequence will continue to number the central base. The complement sequence will continue to number the following base. The program is pretty smart about writing the Delila instructions. If one searches for the complementary sequence, the instructions are automatically written to extract the complementary pattern found. Two of these are located in the piece.