empty list systems in wizard "add value"

NW2004s SP9

VC7

"syst1", "syst2" - ERP2005

I see systems "syst1", "syst2" in VC (Find data-system).

I also see in VC (drop downlist-properties - entry list-dynamic).

But when I choose "add value" on input field I don't see this systems.

Why? May be wizard "add value" assigned only BI systems?

Regards Jane