Can you pair a remote to a specific device

I have 4 devices co located in my audio cabinet. I only need the remote for my S50 Pro+.

When I press any button on the remote (e.g. switching the input) it changes the input for all 4 devices.

Is there any way to pair a remote with a specific device? Or can I “turn off” the IR on the other 3? Any other ideas?

@slamantia cover the unused infrareds with black insulating tape!

I use a Harmony remote to control my A/V system and wanted to always set the S50 Pro+ to “Optical” input when I started my “Watch TV” activity. The issue was that it was setting all 4 of my Arylic devices to the “Optical” input. The black tape trick seems to be blocking the other 3.

Thank you.