Help with Fill Pattern instances to skip in configurations.

I have a part that changes in length per configuration that has slots placed in it.  The slots have to be a set distance from the end of the part so I need to skip some instances in some configurations.  When I skip an instance in one it also skips in the other configs that it is used in.  I have tried configuring this in the Config Feature but it just suppresses the whole patter.

SolidworksParts And Features