Having a bit of trouble performing analogWrite to A10 or A11 on Teensyduino 3.2.

The oscilloscope shows no changes when monitoring either of those pins while sending, i.e.
Code:
analogWrite(A10, 256);
.

The schematic shows A10, A11 as ADC pins, will it be an issue, or a way to force these pins to analogWrite?
https://www.pjrc.com/teensy/schematic.html