1/2 Magic Upgrade Item?

[SUCCESSOR]

Aye, it's on the heap of things that I'd like to change at some point, to allow different magic usage rates.

I assume you can already. If you take "1/2 Magic" as the minimum rate you can set up your drain rate to just begin at a higher drain rate and change actual usage through the editor, if needed. Say you start the drain rate value at 8. Then it could be varied starting at 4x, to 3x, to 2x, to 1x, to 1/2x.

So the other question is with that script will it trigger the appearance of the 1/2 magic symbol or is that another function?

The half magic icon is a subscreen element and I am not sure how it is triggered but I know how to fake it if you can't figure it out.