1. No, there isn't yet, though I would like to have that setting too, but it might complicate development when we don't have the ability to delete an annoying tree or Bush in the dev overlay (f.e. one that blocks the ai). So we need to be a bit careful with this feature, and the ai would also need to understand it can't delete something. 2. It should be possible by just not giving an armour component. However there are probably some bugs with this, as it's never used in the main game. Health is also needed for capturing, as it influences the capture speed (though we could also assume default capture speed when no health component is present.) 3. See the other two. Having delatable as an entity property somewhere would also open the door to easier implement deconstruction as a unit action that takes time and/or resources. Not sure if we want that, but opening the door for mods to implement this isn't bad for sure.