Steel elevation in a TOP view drawing

Hi,
May I know how to show the top or bottom of steel elevation in a TOP view drawing? (Please see attachment) . It will be great a label tool that allow selecting the member and displaying the elevation top or bottom of steel. Does exist a detail style that shows the elevation (top or bottom of steel)?
I have a framing plan top view with many beams at different levels (elevations few inches away each other).
Thanks in advance.

I have a framing plan top view with many beams at different levels.

Attachment: [file not found]

not shore if this wot u wont but its the closes i know off

you can add levil symbol  witch  gives the elivation (in meters ) of the point u cliked on 

u can find it in Labels and dimensions / parametric labels / insert level symbol