I do not see any option to have the input camera mirrored as it does for the preview output.
My department is heavily doing instructional recordings with a lightboard; that needs the camera view in Pearl2 to be mirrored on both the input for recording and on the output for previewing.
Is there a way to tweak that on pearl2 or any way that helps?
Unfortunately mirroring in the inputs is not a supported feature at this time, noting that a number of cameras may have this feature built into their output settings.
Mirroring at the HDMI output on Pearl is possible, and can be found in the HDMI Output settings