Support coordinates

Is there any way to turn on just elevation for support in isometric?

There is but it will affect other coordinate call outs also. Firstly set your coordinate output for supports = true. This is OS:5 if not mistaken.

Then in alternative text you can suppress the northing and easting call outs. This will then just give you elevations on supports.

Hm, nice approach, but I need coordinates at other components..
I will disable coordinates for support and add Elevation in TAG. But in that case that text will be in Tag box frame.
I know that we can split text in second row with $ character, I wondering is there a way to tell him to do it text with box or without.