Importer/Workshop question

Why is there only a two-word phrase option for how you want you shorthand set up? I want to use the following type of system:

two words: aabcz
three words: aaabcz
four words: aaaabcz
etc.

Currently, I'm having to go into each glossary after compiling and make all these changes manually (except the two words). Is there a quicker, more efficient way to handle this?