FORM MultiSecet and NET-Connector?

I use the NET Connenctors. Now I want to fill a multiSelect from SQL database.
The documentation says that multiselect has a connector property which points me to the SelectOptionsConnector.

But with the NET_Connector i can’t find that SelectOptionsConnector anywhere? Same goes fro the select control. (Well i use readonly combo so far)

Do i miss something?
Best Regards,

Hello, try dhtmlxOptionsConnector