Did you add those "LEFT" and "RIGHT" annotations manually?
What does that I= represent, and what is it being calculated against?
Or is that a label style you have seen?
The label shown looks like a standard Statioon and Offset Label
stat_offset_Elevation02.PNG
I don't know that one can get this from a PI lable it looks like it might be possible from a Curve label, because the options
within the expression generator include Angle In and Angle out, however it is still not going to generate a Left or Right direction output.