IIS callbacks

Dear 

Currently it seems like Gurobi's IIS computation only has ‘polling’-like callbacks. There do not seem to be actionable callbacks which can trigger at an event such as a constraint/bound being found to be part of the IIS. I was wondering if such a feature would be possible to add. With that it would then be nice if I could retrieve the constraints/bounds in the IIS so far and the incumbent solution found for the last solver call.

Kind regards
Orestis