I am trying to add a button to the sub-grid, e.g. here on the sub-grid of contacts connected to the account:
I am using Ribbon Workbench for that. I opened a solution with only the contact in it, I added a simple command which opens google in a window and added a button that uses this command:
However the button does not appear. Is it at all possible to add a button to the sub-grid? What am I missing?