In non-plan and perpendicular elevation, section, or 3D views, you can edit the extents of a truss. You can create new lines, delete existing lines, and use the Trim/Edit tools to adjust the profile, as required. By editing the profile of the truss, you can modify its top and bottom chords to any shape desired.
Note: Not all truss families properly transform into a profile sketch. For the top and bottom chords to conform to the shape of the profile, the layout family's top and bottom chord sketch lines must coincide with the top and bottom reference planes respectively. The curves drawn using Top or Bottom Chord Reference tools in a profile sketch define the transformation of the family's top and bottom reference planes, not the shape of the top or bottom chords.
To edit a truss profile
- Select a truss to edit.
- On the ribbon, click
(Edit Profile). - Click
(Top Chord) or 
(Bottom Chord).
- Select a line tool.
- Sketch the profile to which the truss will constrain.
- Select the old plane profile, and delete it.
- On the ribbon, click
(Finish Edit Mode).
The truss model shapes itself to fit within the constraints of the new profile. If necessary, you can edit the chords of a truss while it is attached.
If the truss is attached at an edited chord, the profile will be ignored. The attached surface of a structural floor or roof determines the chord geometry. The truss profile shape is not discarded and will display if the truss is later detached.
Tip: Click 
(Reset Profile) to reset the truss to its original profile.
(Reset Profile) to reset the truss to its original profile.