How to associate a set of parameters to a subsystem

I have a model "M" with 2 subsystems M/C1 and M/C2.

C1 and C2 are identical, with same parameter name llist.

Q : How to associate a parameter set from mfile Tun1.m for C1 and Tun2.m for C2 ?

I have tried :

Solution 1 :

1. load Tun1 and Tun2 in a structure
2. create a mask on the subsystem
3. set structure Tun_x in the mask
4. In the mask inititalisation for each file a of the structure vari = Tun_x.vari

It works for simulation but we can't compile "M" because we can't set tunable structures for compilation. And init of subsystem are not included for compilation.

Solution 2 :

With data dictionary

I need to create 2 reference models for C1 and C2 to associate my data dictionaries.

Then when I simulate "M", I have conflict names between Tun1 and Tun2.

Solution 3 :

Rename automatically all parameters in the subsystem (more than 1000) with a prefix.

How to find all parameters list with block path and property in order to modify with a set_param ?

Does somebody have an idea to solve my issue ?

Thank you