Interestingly nobody told me... well, I know and I'm working on it...
What??? Well, yes the ROManager for FutureOS has some serious problems, but thanks to SyX who helps me a whole lot with testing, we will get it hopefully running well one day.
BTW: I think to add some functions, like EDIT a ROM, not as sophisticated like in MAXAM, more a basic routine, because I just can use some API functions of FutureOS. But first, 1.36 must run properly.