I'd love to see additional icons added to the choices available for macro icons. While I appreciate that many of the icons are the same icons as the abilities, this is a bit redundant with the /macroicon option. I also find the current icon design a little too busy, and would like some simpler, cleaner, icons.

Also I fully support the request for some sort of global cool-down and casting-time wait period that can be either added as its own line, or baked into an action line.