I found out the "OA Orbit Plot.vi" has a subVI in which the angle of the probes are compared, then reversed if the angle between the probes exceeds 180 degrees (not a helpful feature in my case). By modifying this subVI, I've successfully disabled that "feature".
Specifically, inside the OAT Orbit Plot (Filtered).vi, there is a subVI called "OAT Arbitrary Probe Angle Compensation.vi". Inside that VI there is a subVI called "Probe Angle Preprocess.vi". The logic in this VI swaps the probes if the angle between the X and Y exceeds 180 degrees. There must be a reason for this automation, but it interferes with what I'm trying to do. I simply bypassed all the logic in this VI, put the signal through the degrees-to-radians multiplication field, set the boolean to always "False" (don't switch channels) and saved it all. It works now, the probe labels are not reversed when Y channel exceeds 180 degrees. In my case, the probes were set up, keyphasor in line with X channel, Y probe located 270 degrees away from the X probe.
This information may be helpful if, in the field, during setup of temporary probes, one selects the X probe to be down-rotation from the Y probe.
