Currently, you can fill in one parameter for the orientation and tilt.
If you have more than one orientation or tilt angle for your solar panels, you should set a value that describes the solar panels combined.
The simplest solution is to average the tilt and orientation of the installed panels. You could take the capacity of the panels facing each direction into account if the capacities of the panels facing different directions are not the same.
Example:
I have 4 panels facing southeast and 2 panels facing northwest, so I have 6 panels in total. Both directions are the same type of panels.
I now use the proportion of these panels to determine the orientation:
(4/6) x 135° (south-east) + (2/6) x 315°(north-west) = 195° (average orientation)