Thanks for your reply.
But, my question was not exactly that.
I know how to create & use bo4 on top of a BPC Cube.
And it works fine.
My question was more oriented on security & role created in BPC through the memberaccessprofiles.
I mean : with the accessprofile in BPC, i can restrict access to data for BPC.
But, do these specifics BPC roles can be also applied for accessing data with a BI4 built on a BPC Model ?
I made some tests, but found that it is not bpc security does not directly apply to BI4 access data.
But; as with BPC10 NW, roles are fully integrated with BW, is it a way to use them for BI4 ?
Tks for your help & explanation 
,
BR,