I had this idea while I was setting my Blue spells one day. I'm not sure if I can explain it the way I thought of it but I'll try.

I was thinking if when you select your magic from the main menu function, where it shows all the forms of magic, after selecting a spell there could be an option to set as a macro and you place it in the book/row of your choice. Then the same thing could be done with abilities too. I'm not sure if it's even doable or if others think it would be useful. But at any rate, I agree there should be an easier way to make/edit your macros.