You can chat while its running (although i must admit i'm not sure what will happen if you use the Shift key hopefully nothing), click anywhere, ...
I suggest using this in a desolated part of the market like left top right or even bottom boundary (market=safe, desolated=lagfree, mostly)

enjoy
edit: err... may not work with shop (i'm nearly certain it just wont restore so dh will lvl twice as slowly as otherwise)
also be sure that
1) there is no restore button present when you run the script
2) you can't use xp skill when you start the program
edit2:
this would work with any combination of xp and stamina based spells. i'm not a reborn yet but i think guard/summon is a valid combo, or ND/dh, robot/guard...






