HDSDR: Selecting Ant. To Use from RSP-2 (SDRPlay)

[BOBRR]

Hello,

New at this, so please bear with me a bit:

Have a new SDRplay RSP-2
It has the 3 antenna inputs.
Nice unit.

Trying to use it with HDSDR, vers.2.76a

Have looked everywhere on the screen, tried a lot of the options and buttons,
but just cannot find the right place to select which Antenna output from
the RSP-2 the program will use.

Where is it, please ?

Thanks,
Bob