I am getting the warning "Close to Maximum Macros. You can have a maximum of 18 macros per character. You currently have 17. As a result this macro was not created. Please delete some macros and reenter /gs again."

I do not have that many macros, and I can't for the life of me get it to work right. Also how do I delete them other than editing the LUA file?

In /gsse - Disable Sequence or go to Manage Versions -> Delete.

The other alternative is to turn on Macro Overflow to Account Macros in Options.