The ability to reuse deployment plans to push from our QA to Production environment is great.  What would make it even better, would be to have the ability to merge together multiple plans to reuse them as one plan.

We often have multiple deployments to our QA environment, before they go to Production, and it would be really handy if we could MERGE those multiple deployment plans into a single plan (instead of having to pick one, then manually add all the additional apps to it) that is what is then used to deploy it all to Production.

eg: If I create a plan for deployment to QA for instance, that contains apps 1, 2 and 3.  Then another that contains app 1 again (to fix a bug found in QA from the first deployment) plus additional apps 4 and 5.  It would be great to be able to select both those plans, and merge them together to get the full deployment plan for production of apps 1, 2, 3, 4, 5 (our plans an often contain 20+ apps).

Either pick both and say Merge, or pick a plan to reuse, then once in that plan, have a way to import the other plan/s apps, so it just adds the apps that aren't already in the current plan, or something of that nature.

I can't see any way to do this currently, and as a Release Manager, it would be a real time saver, and make cross checking soooo much easier!