In one of the next updates I might add a gmgui where you can change your gamemode via a GUI, but the issue with that is only people with the permission can use it, and I cannot add separate permissions for it, I might work out a way, but I will see.
1.3 UDPATE I have now introduced a GUI on the reload command, just as an extra layer of security, just so you have to confirm it before it reloads the config.