The Nested Show If Not First server behavior is used to control the separator display, more exactly to avoid the separator display before the first element in the list. Before applying it, make a selection in page.
The Nested Show If Not First is accessible from the Application panel, Server Behaviors -> + -> MX Kollection -> Dynamic Lists -> Advanced -> Nested Show If Not First.
The server behavior has one tab. Instructions about its correct configuration
are given below.

To set the dialog box options, follow the next steps:
In the Recordset drop-down menu select the recordset that will be used for the first row verifications.
The three buttons in the top right corner of the
interface offer you the next functionalities:
· Click OK when you are done configuring the server behavior.
· Click Cancel to exit without applying the new settings.
· The Help button opens this help page.