When you drag the landing point, the system will choose the first slot by default automatically according to the distance. During the match, you can click the bag icon at bottom right of the game screen to switch clubs when it's your turn to shoot.
Note: Make sure you have added clubs in your bag in advance.
See FAQ-Club- How do I select the clubs for a match?
- Click the club & ball icon to open your bag
- Select the club you want to use and tap USE
- Then select the club to be replaced