Correct me if I'm wrong, but it sounds like you want to be able to use two separate microphones simultaneously. This is not possible unless you use a third party software such as "virtual audio cable" to mix your inputs.
If you are using version 1 I don't really recommend that you use a bluetooth microphone anyway, as I have said on this forum and in the wiki, many times.
If you want to switch between multiple microphones it is possible but you need to set up an action to do this, telling VC which input you want to use.
Or you can use any number of Androids running VoxWavs, in combination with a single windows microphone.