You aren't familiar with tree views perhaps yet. We would therefore like these openly give you a better understanding of type of the representation:
In this dialog you find green, yellow and red color divisions on the right side. These show you whether pass problem at the elimination.
Only the objects are cleared up whose checking box is marked on the left side.
Short help about this, what was found there you can do below the list a look up.
If you liked to block objects, you find below the area of responsibility with different possibilities:
