Making sure people in a generated list don't appear in a widget

Hi All,

I was hoping someone might be able to help with a small issue I'm having.

I have a widget set up that is looking for any people that have attended their first show at our venue so that I can use it to possibly send out a email asking for support or suggestions. I would like to make it so that this list automatically removes any people that already have a primary worker assigned to them.

To do this I figured I might be able to create a list that looks for anybody with that primary work and I set it so that list can be used in analytics.

My question is if I wanted to make it so that people from that list don't appear in the widget is there a specific operator that I need to use to make sure that list of constituents is excluded from the over all list?

Like if I searched by text would selecting "Doesn't Contain ,#####," make it so people on that list are excluded automatically?

I cant specifically filter out the plan workers because I'm using the Seating Cube and that's only available in the Plans Cube. Or if anyone has a different way of doing something similar any ideas are welcome.

Thanks in advance for any help that you can provide. If you need any clarifications please feel free to ask.