These are very useful comments, thanks!
Currently the only way to see your hotkeys is to open the config.cfg file in a text editor. This is an oversight; I didn't think about seeing your hotkeys when making the hotkey system. I'll add a hotkey viewer to the next release.
You cannot currently do anything to the gears of destroyed meks.
Normally your character can only take part in one adventure at a time; when the adventure is finished, the character gets ejected and can then be loaded into a new campaign. There is currently no way to exit an adventure before the end, though I should probably add one. You can, however, find the ghcaramel folder and rename the backup_[character name].sav file to egg_[character name].sav. This will allow you to load the PC into a new adventure again.