AirParrot 2 allows you to mirror to multiple devices at the same time. You can disconnect from multiple devices as well. 

In the top control section of the connection menu, you will find a power button. If pressed, button will disconnect AirParrot 2 from all the devices it is connected with.

If you want to disconnect only specific devices then simply click on the device name you wish to disconnect from. This will disconnect AirParrot 2 from only that device.