ZBrushCentral

Zsphere pipe body interupting my retopo (can't close so no polygon but paper model)

Hi! I have a problem while retopo.
I have 1 zsphere in subtool. I made body frame out of it successfully.
I select same zsphere to retopo my reference mesh(head) and here’s what happened.
I can’t hide Zsphere frame It just not letting me close my retopo head (neck head joint part)

how can I hide my Zsphere body and then finish my retopo head??

Attachments

zsphere problem.jpg