since a few minutes DM41X is here, beside the sister DM42

I've also a HP 41CX, but with DM41X I'm a "noobie", so sorry if I ask a bit...
1. is it possible to load more programs at a time as in DM42?
I tried to load, to test my little programs (Epoch and Leap: see DM42 software section) but loading one the other is no more in memory...
Then "Leap" (it uses flags/annunciators) return also a "non exixtent" message. Is there a tool to encode the code specifically for DM41X? I'm using the same for DM42.
2. I would try to load Math 1 and Advantage module, but no luck. Setup->Load module... I see only a "Parent directory" (the modules are already in /mods, I can see them in USB mode), only I'm not able to load them

3. Other tips and hints very appreciated.
Salvo