Various times this has been brought up by community members, but Bond staff have mentioned it’s difficult to handle at the hardware level.
Anyway for Bond to “listen” to physical rf remotes?
Does Bond know what I do with a separate remote?
See the second paragraph about listening across all frequencies at all times: V3.1.0-beta for Bond Bridge Pro - #18 by merck
If you get a Bridge Pro (not the same as the Bridge), you’re in luck!
The details take a little digging, but check this out:
Usage note - a Sidekick, either Gen 1 or Gen 2, configured as a shade remote will only be able to control Shades. The Gen 1 Scene Keypad or Gen 2 Sidekick configured as a Scene keypad will be able control shades, lights, fans, generic and SBB devices that are in the Bond Home application.
(link)