Situation:
- Users have an existing custom ribbon that is added via a .PPAM (combination of VBA macros and Ribbon customization XML).
- We want to add a group to that custom ribbon via our managed COM add-in
- For custom ribbons from other managed COM add-ins this is feasible via the xmlns:foo="bar" & idQ that can be extracted from the customUI Link
Complication:
- Custom Ribbons from non-managed add-ins seem to have no xmlns namespace, they do not show up in the customUI
- Even via PowerPoint/Office the user can not customize those ribbons.
Any idea how we could achieve adding buttons?
We can request changes to the non-managed/VBA add-in.