Thanks for your note. I believe I can help you. To help me give you the right solution, could you clarify what you want to be able to do? I can give you a walkthrough once I'm clear.
Could you post the code of the tag you want to fire? I can offer you the best solution and then even if you don't need a custom container I can explain how to map with it too and use extensions with it.
I'll need to do a bit of digging around to make sure it works for you.