In iPad branch, we have the nice GUI movement buttons (which map to the numpad).
The GUI movement buttons disappear when we open any GUMPS window.
However, in options we can set "game pause when GUMPS open" to be disabled/false.
But GUI movement buttons still disappear when we open any GUMPS window (but game is still running).
Please, report bugs/feature requests regarding the iOS port to https://github.com/litchie/exult-ios/issues
So far this fork has not been merged with main Exult and some structural things may make it really hard to.
I may disable that option in the iOS fork, since the GUI buttons are disabled as they prevent a click through.