If you're running the jevois-daemon from a terminal, see here. (It shows you how to use it on the host with a camera other than the jevois. It also shows you how to configure the jevois to automatically start up running any module by editing initscript.cfg, which is handy if your module doesn't use video output)
Basically, from a terminal, you can run:
To start jevois-daemon in a specific mode, find its number in the listmapping list, then CTRL-C to quit jevois-daemon, and finally
By replacing XX with the mapping number you want.
If you're starting the module by streaming from the jevois camera to gucview or AMCap, just select the mode, resolution, and frame rate of the corresponding mapping you want to run as determined from the listmappings command. See here for info on video mappings, here for using a Linux host, or here for a Windows host.