Heres the WCS one. I need to ask the boss who owns/permission for the work ones
Yep, looks like that basically only creates a rotated view.
It wouldn't work at all with Land Desktop, since Land Desktop bearings are determined by the UCS, sort of. Actually, it's a bit more convoluted than that, and Land Desktop really does not work at all right if the user is not in WCS. It is caused by a whole series of coding errors in Land Desktop - slightly different code would not have the issues. But Land Desktop has always been like that, and it won't be fixed at this point.
In reality, LDD uses the Northing/Easting grid to label bearings. The N/E grid is not the same thing as the WCS or a UCS, but it is similar. And because the Land Desktop labelling routines are not written correctly, they get confused if you use a UCS.
None of this applies unless you are using Land Desktop, though.