Sorry about the poorly-worded title.
Linked RT 5.0 to ‘PictureFX’ in HaldCLUT directory Prefs. and tried it out … it worked properly.
Much encouraged, I changed it to a much bigger folder ‘HaldCLUT’ and re-started RT. Clicking on the Film Simulation enable radiobutton did not bring up a selection menu. Also restarted the computer - nope. Also re-loaded RT and re-linked - nope. Fired up RT 5.5 - nope.
I’m sure I’m missing something but I’m too old to figure it out.
Can anyone suggest a fix?