Watchdog for a USB-Drive with a Sharing Device

[mstfly]

Just now I bought your App and it was great. But I have a question because I am looking for a function or an implemented trigger like an watchdog that unmounts the USB drive for me when I operate with a USB switch, when I select the assignment to the computers on the switch, namely with the Aten USB 234 2/4 Port USB 3.0 Peripheral Sharing Device. I’m a Ballroom DJ for Tournaments and therefore I use two MacBooks with one external USB Drive and 1 DJ Mix Controller. If one MacBook fails then I can switch to the other and this MacBook use the same USB Ressource via the Sharing Device.