First, let me just say I have never used AutoRig Pro…
Usually, if a limb can use IK, then it can be FK also. Blender’s rigify human rig’s arms and legs can be used in IK or FK. There’s a switch in the UI to set which way you want to work, and the bones for IK and FK are on different layers. Set the switch to FK and turn off the IK bone layers.
I would assume AutoRig Pro works the same way. Pretty much all rigs work that way…
Thank you, Revolt_Randy.
Thank you, oo_1942 Kim, the answer was in the documentation you sent. Thank you so much for posting the link to the documentation.
Here is a screen grab for anyone else in the future.