You can control the configuration of a split part with a design table. This is available in part documents only.
The column header in a design table for controlling split part configurations uses this syntax:
$CONFIGURATION@feature_name
where feature_name is the name of the split feature.
The column header is not case sensitive.
In the table body cells, type the base part's configuration names. For example, to use the default configuration of the base part for a split feature named Stock-Part1-1.sldprt, the column heading syntax is $CONFIGURATION@Stock-Part1-1. The table body cell value is Default.
Example of a design table that controls a split part configuration: