Rotation angle 180 degree.
physical rotation not possible 
[display]
lcd_type: st7920
cs_pin: EXP1_4
sclk_pin: EXP1_5
sid_pin: EXP1_3
encoder_pins: ^EXP2_3, ^EXP2_5
click_pin: ^!EXP1_2
#kill_pin: ^!EXP2_8
No
I think there is no option in klipper to execute it directly like in Marlin.
Do you have anything in your mind?
jules
4
if i look at github
there is (currently) no way to flip it in software