Right-click the view to be used as reference.
From the contextual menu, select View Object >
Show Folding Lines.
The folding lines appear.
Click the Profile icon
and create geometry in the top view using the folding lines.
Right-click the left view in which you are now going
to create geometry and select Activate View.
The folding lines disappear.
Right-click each non-active view one after the other
and select Show Folding Lines for each view.
The folding lines now appear as shown here:
Click the Profile icon
and create geometry in the left view using the folding lines.
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Click a view and move it.
You can note that even when views are not aligned, folding
lines remain associative.
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