Merging 2 virtual controllers in 1 virtual controller?



Is there anyone that has experience with virtual controllers and programs that manage virtual controllers ?

I have 1 virtual controller (A), generated by virtual desktop for the use of quest controllers in steamvr


I have 1 virtual controller (B), that i have generated with vjoy/ucr/e360ce for using keyboard strokes to control this virtual controller (B)

Is there anyone that have any suggestion in a way to merge in windows the signal/output of the virtual controller (B) , with the signal/output of controller (A) , to create 1 joined controller output in (A), to use in steamvr?