HQ Sandman found!!

[will.co]

Courtesy light switches are HX and HZ Sandman. HQ and HJ didn't get them unless optioned.

Could you pls tell me Byron if this option was only available in sandmans for the HQ & HJ?
Cheers

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Also who can tell me how much a Sandman pref HQ cost when purchased from the manufacturer??
Very Interested to know this...