This is about the FAQ Q 5.5 Why do NumLock, CapsLock and ScrollLock interfere with ClickToFocus and/or my mouse bindings?
A new answer can be added. Fvwm-Crystal implement the 4 basic focus policies: Click to Focus or Enter to Focus combined with Raise or !Raise. To add FPFocusClickModifiers NA at the end of the focus related styles fixed the problems with NumLock. Without it, Numlock interfere not only on the Click to Focus styles (Amiga and MSWindow), but also on the Enter to Focus with Raise style (FVWM-Crystal with raise). Best, Dominique -- "We have the heroes we deserve."