Trigger RemixVideo with an AUX input

Hello. I am interested in buying Mixxvibes Remix Video and wish to run it a bit differently than the norm...
I would be playing audio from another source and wanted to send an "aux" feed into another computer or iPad running Mixxvibes... Triggering the video that way rather than paying any pads or loading video with audio associated with it. I am only interested in triggering the video to move in time with audio from another system. Can I do that?
Also, how do I go about buying more content for it? Is it all strictly through the store built into the program?
I would be playing audio from another source and wanted to send an "aux" feed into another computer or iPad running Mixxvibes... Triggering the video that way rather than paying any pads or loading video with audio associated with it. I am only interested in triggering the video to move in time with audio from another system. Can I do that?
Also, how do I go about buying more content for it? Is it all strictly through the store built into the program?