So the Office Connector now is up and running and I've modified the code for the Open in Office action to also function from relationship items. Some time ago I also implemented a tree grid view that ...
Luckily we're on 11.0 SP12, adding one action to all TGVs wouldn't be ideal since not all TGVs'll necessarily show document items in any way or form.
I'll let you know how it turns out!