Roland RSS M-300 Owner's Manual page 87

If MTX is stereo-linked, the following parameters will be
shown for the odd-numbered MTX send:
fig.PopMtxSendField2Guide.eps
1
Pan slider
1
This adjusts the left/right panning of the signal send to the
stereo-linked MTX in a range of L63–R63.
The function buttons have the following operations:
[F3 (ALL ON) Turns on all send switches for each send field.
[F4 (ALL OFF) Turns off all send switches for each send field.
[F5 (UNITY) Sets the send level to 0.0 dB for the send field at
the cursor location.
[F8 (CLOSE)] Closes the popup.
AUX send/MTX send
87