The web interface "Advanced" tab presents you with these following options:
Uncheck this option to connect to Unix computers through xRDP.
Connect to console session
Check this option to connect to the console session. This require confirmation from the logged on user and log out the current session.
Check this option to enable the compression for the exchanged Websocket data and have the application performance improved.
Relative mouse movement
The relative mouse movement is a mouse behavior encountered in touch screen mobile devices, in which the screen cursor moves relatively to the touch.
Uncheck this option to have a mouse behavior similar to the real desktop mouse in which the cursor will be always positioned under the touch.