Such things never work “out of the box”. Depending on the AddOn you want to use it, you have to program it trough external software like Spad.Next/ AAO or maybe mobiflight (i dont know mobiflight so i wouldnt know).
Also, the AddOn you intend to use with that, needs to give acess to all the things trough variable like LVARS etc. Usually, this is a lot of work, hours and hours, for every Plane u intend to use it. Unless there are already preconfigured profiles available.
So yeah, things like homecockpits need time, knowledge, and also an AddOn plane that in the best case has a documentation about its used LVARS etc…
EDIT: I tought they come with instruments, i just now realised they are intended to slap on a monitor.