Hi all,
I'm trying to measure my created object to double check whether I made a mistake.

Thing is I cannot get how to do it. I also installed Dimensions plugin, but not sure if I'm doing something wrong or it's a bug.

What I'm trying to do is to measure height of internal dimensions of the object attached.

I cannot figure out how to "measure corner height of walls inside". I can read how much is it on my grid, but this is very simple object and I cannot get it to show me. I will need that for more complex shapes.

Also can somebody advice how to delete dimensions?
I tried to select it and hit delete (key and button) but it remains there, sometimes even I'm not able to select it.

Thanks a lot.

Juraj