Hi,
Our routers do not have a WPS button or any kind of configuration of it. As our routers are more business/industrial-oriented, we believe that WPS has it's security flaws and by default, we do not provide any control of enabling it.
If you're eager to still use it, you can download 3rd party utilities for that. For example wpad and hostapd-utils packages, but you should have in mind, that we do not accept any responsibility for the functionality of these 3rd party packages.
EB.