There are two methods to add a match to your worklist. The first is by using a swiping gesture while viewing your matches. Place your finger in the middle of that match and start dragging it to the right. The match will start turning green at that point. When you drag your finger all the way to the edge of the screen, the match will be added to your worklist.
The second method to adding a match to your worklist is from directly within the details of the match. Tap on a match to view the details of it. Scroll to the bottom and tap the ADD TO WORKLIST button.
Once a match is added to your worklist, you will see a green status indicating whether it is INTERESTED or BOOKED.