Your post may need to be set-up to output rotary moves.
Check line 10 in post
10.Rotary axis index string
"A" can be changed to any letter for the rotary axis
Then insert variable "output_rotary_angle" in the spot that you would like the post to output the Rotary axis command
On your milling and drilling operations go to posting in the file tree. Select output rotary angle and enter in angle for the rotary axis to position to.