DHCP WINs option missing on Max-BR1 Firmware 8.2.1

Hi Everyone,
I’ve been using a couple MAX-BR1 routers for testing routes on a PEPVPN tunnel and for the life of me can’t find the WINs option in the DHCP server.
Not sure if it’s hidden or missing in this model but have tried finding all the hidden menus by clicking on the ? menus.
Also looks like that option number missing in the extended DHCP options list.
Does anybody know where to find it or what may disable that option?

Thanks

Below are a couple screenshots.
I thought it’s usually between Static Routes and DHCP proxy