I know it is a bad example of the suggestions but it is a necessary measure
Add the fuel like nitroglycerin who had a big explosion force (bigger than PETN)
Add a drood without spacesuit (or ability to remove the helmet) and "drood redactor" like character creators on another games
Add a flags with loadable and editable texture ( and ability to droods can put them on planet surface
Add hole part like on SimpleHoles mod, but official in the game
Holes can transparent all objects on it, and using depth mask (like landing gears or cockpits