Bad News: no, we can't directly make a truss from outside lines....
Good News: you can edit de lines of your truss (offset) and adjust the outside lines to the right dimensions.
anyway, if anybody else knows how to do it... tell us.
Nando Mogollon
Director @ BuilDigital
nando@buildigital.com.au
Using, Archicad Latest AU and INT. Revit Latest (have to keep comparing notes)
More and more... IFC.js, IFCOpenShell
All things Solibri and BIMCollab