Mathcad Prime - one (system) error with units at surface and counter plots

[ValeryOchkov]

We can point units of the argument on X-Y plot. It is OK!

But we can not point units of arguments on counter and surfase plots. It is not OK! It is a big (system) error!

See, pardon, study (m:=1 ??? in the area) the attached sheet.

I can (graphical) solve this task only when m (meter):=1

Do you have an other solution?

PS

The solution in Mathcad 15 is OK:

http://twt.mpei.ac.ru/ochkov/T-2012/1_70_Plot_Pad.png

Animation on this optimization problem:

http://communities.ptc.com/videos/2239

[ValeryOchkov]

See also the picture:

[ValeryOchkov]

Numerical solution of this problem:

(not S(R, H) but S(L, H, R) - KISS-Principe: keep it simple, stupid)