So, the button merging feature... did I get this right?

[SamSmoot]

I wonder if it will be locked to combos, or will it be more like WoW's castsequence macro command, where it can chain any group of actions together, one firing per button press. The icon on the macro button changes to represent each action, and it has a timeout feature that will return you to the start of the sequence if you don't finish the it in the number of seconds you specify.

To me, the merging feature is mainly a way of reducing button bloat IF it lets you marge them all onto one screen button and mapped key.