Quote: "When you have some free time, please could you explain the options '0 - simple','1 - cancel cube delete if next cube inside present' and '2 - only add if empty cube area' ?"
These options are related to the "delete" of ebe objects.
0 - everything inside the ebe model will be deleted. If you have a wall and placed a block inside with preservemode = 0 and then you delete the block, your wall has a hole inside.
1 - this is the opposite of 0. If you have a wall with a cube (the cube has this time preservemode = 1) and you delete the cube, your wall is intact and there is no hole inside
2 - is the clean all option. If you have a wall and a floor inside a EBE 3D cube and then you choose the stairs (stairs have preservemode = 2) and removed them inside this cube, everything inside will be deleted.
Hope this helps

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