Hi. Please bear with me if this is a totally lame question, but being the effects newbie I am, I have not been able to figure this out (no, not even using the "search" button

). What I want to accomplish is to have a setup in which my signal always runs trough the my sansamp BDDI for a little bit of dirt, except when I am using chorus/flange. What I would like though, is to not have to switch the BDDI off and the chorus on, but instead push a single button to "switch" signal paths.
HTML Code:
--> chorus \
bass --> (other effects) --> amp
--> BDDI / Does that make sense? Will an A/B switch do what I need? Or do I need a "looper"? Can anyone reccomend a good product for this?
Thanks.