title: Getting a list of all active messages in a CAN Bus
body: <p>I'm just learning to use <code>CAPL</code> on <code>CANoe</code> and I need to create a gateway that filters messages between 2 CAN Buses.</p>
  
  <p>For the first part I need to create a way to toggle the transmission from Bus 1 to Bus 2 and vice versa (already done).</p>
  
  <p>Then I have to be able to select a specific message from any of the buses to send it over to the other bus. All of this must be don graphically with a panel and I'm using checkboxes for the toggle of part 1 and dropdown lists for the message filter.</p>
  
  <p>Do you know of a way to get a list of the active (Rx/Tx) messages in a bus from the last, say, 10 seconds? (I know I must use a timer to call the update function)</p>