Circular knitting from stitch holder

Hi,
I’m ready to make a collar for a dog sweater with circular needles, beginning by knitting previous pieces (back & front) off of a stitch holder. Do I insert the right cir. needle and treat the stitch holder needle as the left?

Thanks,
Chiknitter

You can treat the stitch holder as a needle.

Mine are bulky to work with so I usually slip them over.