Hiya @docsavage & Welcome To The Cuckoo Community !!!
As you have guessed it is Indeed possible to disable both the 2.4Ghz & 5Ghz
wireless channels in both ways actually.
One is by the hidden button on the top of the router on the far right which
takes 5-7 secs of holding down to disable its broadcast or you can use its
Web Login Interface if your a bit of an advanced brave user you can disable
it in there as well as customising passwords and wifi names which can also
be done through your cuckoo account once setup.
Just bare in mind that there is i believe only 3 of the 4 Ethernet ports available
to use on the router as the others are reserved for future use so you may need
to expand out via an ethernet switch setup from one of the 3 working ports.
The router does support Modem Only Mode as well if you have your own
Access Point Products that you want to use.
I could have Just said YES !!! but im not that kind of person
Hope This Helps !!!