Run parameterized plan automatically from one plan without having to clone

I'd like to be able to run one plan but have multiple parameterized runs of that same plan. The key is here then I only have to modify one plan in one spot rather than cloning the existing plan and changing the parameters there. This is key for plans that have a high number of jobs. When you need to make changes to the tasks inside, if you had to clone your plan, then you need to edit multiple plans.

So I could then run my CI trunk plan against JDK 6 and JDK 7, for example, without cloning.

Certainly, allowing environment variables, capabilities and builders to be selected at the plan level would help this editing nightmare, but I think this is a great idea as part of the "run parameterized" concept.

It's almost a plan within plans.