Connecting two BI systems to one R/3 system

Hi Experts,
We are upgrading our BW 3.x to 7. This activity we are doing on a sandbox server. Now for integration testing we want to connect this BI sandbox to R3 QA system. RFC destination parameters are maintained in both the systems.
Now when we go for source system Restore option from DW workbench, it pops up with message -
"Connection AA is used in the ARQ100 (R/3 QA) source system as a connection ABQ100 (BI QA).
Do you want to delete this connection in the source system? Connection is restored after it has been deleted successfully."
I checked in RSBASIDOC table in R3 QA system, there exists this entry to ABQ100.
My question is - without touching the R/3 QA -> BI QA connection, can I create a connection between R/3 QA & BI sandbox? & How?
or Can we create new connection similar to AA for this new BI sandbox system?
I have already gone thru SAP Note - 775568, but it does not mention anything related to my scenario.
So appreciate help from experts.
Regards,
Vikram.

Hi WernerS,
Thanks for the reply.
Both the BI systems have diff Logical Sys names. And at this time I am not concerned about delta.
But as I mentioned earlier, while trying to restore source system from new BI sandbox server, it is asking to delete the connection from R/3 QA to BI QA which I dont want.
My question is How to establish this new connection without disturbing the existing R3 QA to BI QA connection.
Regards,
Vikram.

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Message was edited by:
U.P. Chamarthy

Connecting two BI systems to one R/3 system

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