dell periphery manager

I have a dell webcam and use the dell periphery manager to tune it. I recently had a lot of troubles with my other webcams being disabled and spent money and time trying to sort it out. It turns out the setting prioritise external web cam disables all other web cams. I use an alien ware desktop and need at least two cameras for my work sometimes 3. Allowing this prioritise external webcam to disable all other webcams without explaining what the consequences are is a pain. I of course switched it off and my problems were solved. Can you fix this please or at least provide a clear explanation that it disables all other web cams.