Only thing i would could imagine is:
1. Organize the Media files on your server with Moving Pictures and set WOL-Powermanager to wake up your server if you enter Moving Pictures
2. Disable WOL-Power Manager for My Videos and then play the videos from the USB stick from there.
I dont think that WOL-Powermanager can differ if you open the USB Stick or your Network Share in MyVideos, but i havnt tried it yet.
1. Organize the Media files on your server with Moving Pictures and set WOL-Powermanager to wake up your server if you enter Moving Pictures
2. Disable WOL-Power Manager for My Videos and then play the videos from the USB stick from there.
I dont think that WOL-Powermanager can differ if you open the USB Stick or your Network Share in MyVideos, but i havnt tried it yet.