Yes -- same with CPP as well. Fvwm2 allowed you to use the language features of M4/CPP to hold variables and to perform loops on different data, so you could g

Yes -- same with CPP as well. Fvwm2 allowed you to use the language features of M4/CPP to hold variables and to perform loops on different data, so you could generate complex config files that way, without needing to build that into the core config syntax itself. However, in fvwm3, I've removed both those modules.