Authorazations in BEX

Hi ,

When I go to bex analyzer to open a query then there we can see the tabs Find, Favourties,History,Roles, Infoareas

I have created a new role to my user so that he will go for the roles & select his particular query

but even he can go & open it from infoareas also

My problem is I gave all authorizations for him in Analyzer as he has to create the new queries but what imeant to say he should not be allowed to change the queries which have been created by me ,but can view but he should be able to change , view or delete or create new query for the queries created by him

so What type of authoraztion should i give for this

Generally when we give the report to the user we will directly give the query directly or we have to save it as work book & give