The new "searching for broken references" is incredibly useful, but it is difficult to access. I knew this feature existed (from a discussion in the mailing list) so I looked for it, but have not been able to find it.

I don't think the Focus menu is a good place, as one may well be looking for broken references without the cursor being positioned on a reference.

I feel that it would rather belong to the (global) Edit>Search menu. An access from the Error/warning window (and maybe also from the Search window) would also be desirable in my view.