When placing a kizrak requestor chest over a ghost vanilla requester chest from a blueprint, the kizrak chest can have 4 different item types to request. The first one is invisible in the requestor chest itself but visible in the mini preview under the mini-map (meaning as pictured below, I am doomed to have the chest fill up with concrete), and the other 3 item requests are listed in the request item slots as expected.
https://ufile.io/twf5gmtf (mini-map)
https://ufile.io/2ite45ls (open chest)
Mods: Way too many to list
Kizrak version: 0.1.13
