Thank you for your reply, but i miss place my question.
Yes i can activate and show the labels, but there is no label to show useful information for MEP elements, like real dimensions of the element, bottom or to elevation etc etc.
For example if i use the dimension label, it will always show 1.00x1.00x1.00 no matter the element section.
Hope now you can understand my question.
Thank you
regards
Max