So that button that made to display elevation of shape is not display proper elevation, if you will use Opacity and Height values like this:
You can see that Opacity is on 0 m - so elevation is = 0
But that cursor still think, based on Height - that elevation is max (3190m)
I understand that i may bypass that limitation by using Report Height, Constant device, and that button in Loyout View in seperate window - but it would be comfortable to see elevation directly by using of this button for elevation under cursor