By Adam Nagy
I'm not aware of a way in the UI to switch to the next possible representation (e.g. positional representation) using a shortcut. However, you can assign a shortcut to a VBA macro which could do the switching.
Here is a code that switches to the next positional representation of the assembly:
Sub ActivateNextPositionalRepresentation()
Dim doc As AssemblyDocument
Set doc = ThisApplication.ActiveDocument
Dim rm As RepresentationsManager
Set rm = doc.ComponentDefinition.RepresentationsManager
Dim prs As PositionalRepresentations
Set prs = rm.PositionalRepresentations
Dim index As Integer
For index = 1 To prs.Count
If rm.ActivePositionalRepresentation Is prs(index) Then Exit For
Next
index = index Mod prs.Count + 1
Call prs(index).Activate
End Sub