To show the active work plane of a view
- On the ribbon, click
(Show). - Architecture tab
Work Plane panel (Show) - Structure tabWork Plane panel (Show)
- Systems tabWork Plane panel (Show)
- Family Editor: Create tabWork Plane panel (Show)
Where is it?
- Architecture tab
The work plane displays as a grid in the view. 
To set the work plane of a view
- On the ribbon, click
(Set). - Architecture tabWork Plane panel (Set)
- Structure tabWork Plane panel (Set)
- Systems tabWork Plane panel (Set)
- Family Editor: Create tabWork Plane panel (Set)
Where is it?
- Architecture tab
- In the Work Plane dialog, under Specify a new Work Plane, select one of the following options:
- Name—Choose an available work plane from the list, and click OK.
The list includes levels, grids, and named reference planes.
- Pick a plane—Revit creates a plane coincident to the selected plane. Select this option and click OK. Then move the cursor over the drawing area to highlight available work planes, and click to select the desired plane.
You can select any plane that can be dimensioned, including wall faces, faces in linked models, extrusion faces, levels, grids, and reference planes.
- Pick a line and use the work plane it was sketched in—Revit creates a work plane that is coplanar with the work plane of the selected line. Select this option and click OK. Then move the cursor over the drawing area to highlight available lines, and click to select one.
- Name—Choose an available work plane from the list, and click OK.
- If the selected plane is perpendicular to the current view, the Go to View dialog opens. Select a view, and click Open View.