Ok first I have to say: My fault. I didn't hit the save button for a while.
This has happended to me several times already: I accidentally deleted my terrain because i selected it together with other stuff. It is not restorable. UNDO function is only undoing some edit actions. I just lost 1 hour of work.
I want really to be able to lock the terrain. It never ever should be selectable nor deletable accidentally.
The whole thing happened because Group function (of items) doesn't work at all here. So i am drag-select always groups of items - which is a mess, because you select easily other stuff (e.g. the terrain)
Ok, now i stop ranting. In case all that is possible, just me humble mind didn't know i am happy to get informed. Otherwise: Please fix this soon.
Thank you.
