I've tried various file managers and the GPE one seems the most civilized of them.

At the moment I'm happy enough gaining root in Xterm but it'd be handy to be able to do so in GPE-File Manager too. How can I do that?

sudo gainroot puts Xterm in root but doesn't affect GPE-FM.

I'm trying to put the Wayfinder app in Personal Menu and it seems to need the executable name entered in the PM set up to run from there so I want to root around and find it.