Extend a Line / Wall an exact amount

[M_Perez]

I am used to be able, in CAD software, to extend an exact amount, without the need of reference elements. 

I would say, for example, that I have a wall, and I decide that I want it to be extended exactly 20 cm in the right side. In that case I would, in Revit, draw a line an the n extend the wall to it. 

   - I can select the end-point and enter the total length of the wall (eg. if it was 4m, 4.20m) but it may be unpractical if the wall had a complicated dimension like 4.2368m  (because I have to remember and enter again this number). 

   - I can select the wall and then change the length (=old_length+20cm) but it will be extended 10cm in each direction.

Is there a smarter way to extend elements like lines or walls, without the need of reference lines/elements?

[Ilic.Andrej · Accepted solution]

Yes.

You can use Tab to select the wall edge (this is different than selecting the whole wall and the dragging its end).

After that, click on the temporary dimension use formula like

= 423.68+20

[M_Perez]

Thanks!!

I tried several times to select the edge and displace it but didn't think about entering the number after selecting the edge. Not a perfect solution from autodesk but it works, I guess.

[SDSamirs]

Thanks,
it works well.
I can simply move the selected edge by a certain amount, with no need to type "= x+y"