WebDynpro - iview - different backend systems ?!?

Hi all, confusion again ...
I have the following situation.
I developed a simple Web Dynpro application calling a bapi and deployed it to my Portal (host netweaver). During design time/rfc-model creation i used 2 JCO Connections: wd_modeldata_dest and wd_rfc_metadata_dest, both pointing to a development R/3 4.6c backend system (host CKE).
Everything works fine, i can test the Application in the Web Dynpro Content-Administrator.
Then i create a Web-Dynpro iview including this Application and give it the System 'CKT', that is our Test-R/3. No problem during creation.
When i test that iview it still goes to the 'CKE' and not to the 'CKT' to call the bapi and i found no way to change that. ( Nevertheless the iview asks for a CKT-User/Pwd before running !)
It can't be possible, that an application is bound to one backend system during design time, so it must be my mistake. Lateron we also have to use this iview for the R/3 production system.
How can i solve this ? Thank you

Hello Andreas,
You are maintaning JCo destinations of dynpro application in "Web Dynpro Content-Administrator". What do mean by "..and give it the System 'CKT', that is our Test-R/3". Where did you specify "CKT"?
It is possible to pass JCo destination through URL parameter (sap.wdarfc.useSys). So, you need create set of appropriate JCo destinations and specify parameter in dynpro iView configuration which would name of JCo destinations as URL parameter.
See links:
http://help.sap.com/saphelp_nw04/helpdata/en/af/84a34098022a54e10000000a1550b0/content.htm
Re: Disconnect method
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/documents/a1-8-4/how to use the web dynpro content administrator.pdf
Best regards, Maksim Rashchynski.

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