EM9191 in NSA mode

Ok, we figured out how the bitmask is represents bands (1 bit per band)
3 - NRNSA: 000081A0090808D7 0000000000007042
4 - NRSA: 000081A0090808D7 0000000000007042 (band 78, 77 , 41 etc…)
Is there a way to turn on all the NR bands using the 64 bit mask? Is that a good idea though or is there some issue perhaps in doing this? I did try:
at!band=13,1,“CUSTOMER”,3,0000FFFFFFFFFFFF,FFFFFFFFFFFFFFFF
at!band=13,1,“CUSTOMER”,4,0000FFFFFFFFFFFF,FFFFFFFFFFFFFFFF
however, I was getting an error.

no , you cannot do that (error will be returned)

So is there a limit to how many bands can be active?

you can use AT!BAND=0 to active all bands