I reworked my addon to be completely GUI based. It took me eleven and half gorillion years, but I'm happy with it
It's basically got a readme built in with that ? mark button, but you can add spells with the add spells button. You have to actually have the spell to add it.
Script can be any script. It has to actually cast a spell or the sequence will never advance. I didn't have a good way to check the script besides run it and error handle it, but that might fuck your day up so I left that out. Type your script right.
The efficient healing will cast the most efficient rank of heal for you. Read the part on it
Commands are /sc to bring up the gui
/sc cast to cast your spells
/sc castMO to cast your spells, but with mouseover
https://mega.nz/#!yMY0WKbR!Moc7M_iAS8lMvdYlzVnNUP3Z1jGcHPEC1ulT3tCtIMY