How to connect/customize devices that are not in the database/library

have purchased the Homey Pro but am having trouble finding my equipment in the library.
Here is the equipment I have:

  • TV: LG 55UJ635V (IR)
  • DVD Player: SONY SR760H (IR)
  • 5 HDMI Switch: NEDIS B.V. VSWI347AT (IR)
  • TV Box: ADB (Advanced Digital Broadcast SA) T-We Box (2) (Bluetooth/IR)

I cannot find an option to add them manually using self-learning.
It seems that the Homey Pro is not simple to use. There are no manuals either, and while it’s an expensive product, it is challenging to familiarize oneself with. The Homey app is also not easy to navigate.
Perhaps there are cheaper alternatives that are easier to use.
I had hoped that someone could provide me with some input on how to understand and use the Homey Pro, given that the manual is very thin.