Check this out:
CC To NRPN.mhp (2.2 KB)
You’ll have to use two knobs - one for MSB, the other for LSB values, and do 2 mappings, see the attached preset’s descriptions for instructions.
Please adjust the NRPN parameter number in 2nd and 3rd Transform pipes, as described in the description, to something your synths support. 
Give it a try and let me know whether it’s convenient to control the high resolution parameters using 2 regular knobs.