Fwd: external data structure in free rpgle cant be use in DCL-PI ?

In fixed we work with external data structures to received information and
pass information between programs.
*---------------------------------------------------------------------------------------------
D er6005ds e ds extname(er6005ds)

D wrtprba 4 dim(50) overlay(#tractprba)
Tp Reembolso Anteci.
D wrdesc 80 dim(50) overlay(#tracdesc)
Desc. Tp Reemb. Ant.
*---------------------------------------------------------------------------------------------
C *entry plist
C parm er6005ds

And now we have to used FREE and maintain the same structure.
DCL-DS ER6005DS extname('ER6005DS') inz;
wrtprba char(4) dim(50) overlay(#tractprba);
wrdesc char(80) dim(50) overlay(#tracdesc);

but i can use the same ext DS in the procedure interface:
DCL-PI *N;
p_er6005ds like(ER6005DS);
END-PI;

The information from the caller is on P_ER6005DS.

And i have on the pcpgm always to do:

ER6005DS = P_ER6005DS;

e the ucpgm the inverse:

P_ER6005DS = ER6005DS;

Theres any way of receive the information not in P_ER6005DS, but in the DS
declare with the arrays???