It works in "plain" mode as well .Thanks! Finally found the darn thing.
Found it underneath the PASM dial as a "Lever" with the curve symbol in white (Old eyes didn't spot that one looking down on the top of it on the tripod!). Weird part was it wasn't working and reading the V3 manual I backed up a few pages to setting the front wheel to CRT and still nothing. When I moved it over to Mono it started working! I put the front dial straight up and it still is working so the Curves part is now operational on the Pen-F same as the EM1.2. Don't know why it wasn't seen until I moved the front dial to Mono and back. Weird stuff.
Anyway, it's pretty much the same as the EM1.2 now. Whew!
Kind regards, Wim