Thank you for your answer, perhaps it is better to remap it from s-seq then.
I was only playing with the idea to have an OS loading from disk, for example a (soft)rom containing only the basic to launch the system and then load everything else during startup, libs: intuition, wb, ... devices, handlers and ....
I was even thinking of tech from virtual machines (UAE) to somehow "map" the hardware thru software and as such I thought it would be "remapable" to some point during startup (for example the rom adress).
But then again only ideas at this point, and now checking if it is posible (I might [or might not] try anyhow, but not with a fullblown OS).
Azvareth