While using the latest release of omv7 and the plugins the removal box of trying to remove a usb device online or offline (vm running or not) is empty. Last year I had a problem with the kvm plugin that usb devices are shown but the removal was not possible.
Actually the removal option shows "no usb" device. Adding usb devices is possible, the remaining usb devices not connected to the vm are shown.
Is there still a bug in the actually version of the usb removal option?