Is there a way to clear the cache ERC uses?

I am trying to create a pretty complex animation sequence VIA ERC system. Is there a way to clear all the stuff I don't need in there, without changing anything in the scene before I begin? One problem I have, is that I turn off the bend for a lot of the things, and they appear in the ERC create box. When I create a ERC, without checking it, the bends turn themselves on again, and I have to go back through every one hoping I don't forget any and turn the ones I need back off. Even if I leave unchecked the boxes restore figure riggin and restore figure. I would just like to start from a clean slate if that is possible.