[HP48] Memory Management

[Bruno]

Hi RPL's gurus

Maybe this question has been answered on comp.sys.hp48, but I have not found or I use bad tokens.
So, I'll ask you

Is there any RPL objects that can be expanded directly in User Object Area ?
(ie. Without making first a copy in Temporary Object Area before going back to USEROB)

Here is why :

I wan't to handle about 52 Arrays of Binary Integers without dispatching them in many(52) variables.
(The full set of datas may be very large)
If possible, I want to store them in only one composite or 'sized' object (Library data, HXS or CHR string)
and be able to extract an array, edit/expand it, then replace it in the composite/sized object
with minimum memory requirement (MEM<BYTES(composite/sized)), and of course using built-in ROM routines

Thanks for your help
And sorry for my poor English

Bruno