SAP Lumira data retrieving over RFC

Dear experts,

Does anybody know whether is possible to retrieve data from SAP ERP not over Infoset but over RFC FM call?

Look - on ERP logon screen we have a Button "Addtional parameters"

There is a field: function module wildcard. Who knows what is it?

I tried filling it with BAPI_USER_GETLIST - nothing happened actually,.

I just thouht - once Lumira uses SAP JConnector, why can't we retrieve the data not from Infoset but from RFC FM directly?

I've created also a new idea for that. Vote if you like it.

SAP ERP Data retrieving over RFC : View Idea

Thanks!