However, now CampSnapPhoto explains how to assign filters to all positions of the mode-dial:
Filters are case-sensitive and must be lowercase.
std.flt, vtg1.flt, vtg2.flt, or bw.flt
(cf https://www.campsnapphoto.com/pages/filters%20)
So, it is what we got. However, here comes the plan, look at your B&W-photo text books on how to use color filters with B&W film. Here is a "random" page, I just picked up by a search engine: https://thedarkroom.com/color-filters-with-bw-film/
With CampSnapPhoto's filter creation page, we can of course design our own filter definitions for the CS-Pro.
My advice is to play with R, G, B first, then with Hue. Now reduce the Saturation to 0 and fine adjust with Brightness, Contrast and Hue.
Is it as good a manipulating the RGB-LUT of the CS-105? Of course it is not. However, once you have fine tuned your filter-files, you can set a specific filter to a specific position of the selector, making the camera a BW-film with 4 filters simulation.
My choice is to have a general purpose black and white setting on the STD position. VTG1 has a soft portrait setting (for women), VTG2 a hard portrait setting (elderly men). The BW position is occupied by a very hard contrast setting having a red filter (landscapes, skylines, dramatic skies, etc).