I'm trying to find information on how to add devices, using switches, but can't seem to find anything. Just how to add devices after the BFGminer is already running.
Need to manually add all my Erupters because BFGminer sees some of them as ICAs but three show up as BEEs.

If you are only using erupters, then -S erupter:all should find them as BES also the addition of --no-submit-stale may grab you a few extra clock cycles.