You sure can! Tap the + Add a new location button from the main TT Connect screen, or by tapping the venue name at the top to display your locations list - this will allow you to add another venue to your account!
You'll need to go through the same venue registration process each time, but there is no limitation to how many locations you can access in TouchTunes Connect. For a detailed walkthrough of the registration process, please see our FAQ article: "How do I sign up for Bar Rewards?"
NOTE: Members of the Bar Rewards program are only eligible for rewards from one location and one account each week, and rewards earned are based on the venue marked as your 👑 Bar Rewards location.
If you need to update which of your registered venues is your 👑 Bar Rewards location, you can easily do so using TT Connect! For more information, please see our FAQ article: How can I change my Bar Rewards location?