I like having options. I'm not sure if other people typically like using the keyboard a lot though...
But what if, there was an option to set a keyboard shortcut for TPM? *questioning eyebrow wiggle*
I think it'd be neat if it was there, but unassigned by default so the keyboard shortcut space isn't polluted for new players. Or a default keybinding may be used too if you'd prefer.

I wouldn't want to conflict with other addons, but having the option would be nice.

I've updated the mod for 2.1, and rewritten it so the button is now moved to the shortcut bar, with the option to assign a keyboard shortcut.
The mod is now fully compatible with Space Age, and works on Gleba and Vulcanus as well.