Teststand simple UI

Hello

I want to use the simple UI (CSharp) from the Teststand 2013 tutorials as a starting point for a new UI. In this new UI i want to sent messages (button press) from the UI to the running sequence and i want to change Fileglobals. How do i do this ?

I menaged to update the UI from my running sequence using message but now i want the other way around. From UI to sequence

Thanks in advance