Linking existing requests to new requests

Is there an easy way (and if there isn't, can we have one?) of linking existing requests into a new request?

I would like it to help with problem management.

If I can raise a call and assign it to, say a "Problem Raised" category, I can then link any related incidents to it.

I can then also add any new issues that are raised as a consequence of that problem while keeping the related issues linked and some record of the problem management process.

Also incident management would be able to see any notes or resolutions assigned to that root problem and have a better idea of the state of the overall situation.

I suppose what I should also be saying is... When will further ITIL processes be supported in SD+?