When analysing a position, one often has two questions:
1. "Why doesn't ... work?" For example, material seems to be hanging, but the refutation is not immediately obvious.
2. "What is the threat?"

You can of course answer these questions yourself by entering moves. But often you are not aware that the position contains a witty refutation or an interesting threat. Then these new analysis comments are a good suggestion ("push" instead of "pull").
The display varies depending on the available positional criteria.

Available only in multi-variation mode from N=2, because some calculation time (two CPU cores) is diverted at the start. This way single-variation analysis continues at full speed. The additional variations are almost always tactically simple, so their calculation is stopped after some time while the main analysis continues.
In this mode, you can also see the calculated position directly in the board window via mouseover.