Looking at the command files for both SH3 and SH4, I'm not seeing where you'd remap the "hide Hud" button. It seems to be locked to Numpad - Del and not changeable.
So instead you'll probably want to ask Ducimus to move whatever item is infront of where you need to be I think.
There's no area where you could double click to "fill slots" or anything like you could in SH3? Been so long since I've tried SH4. heh
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