You will be able to change your branch store availability through these simple steps:
1. Open your store account,
2. After your interface appears to you, from Left Side Menu, look for "Branches" then click on it
3. Your branches list will appear to you, navigate your way to the particular branch you have in mind, then use the "Status" button to make your choice:
a. slide to the right (green) for making it available or,
b. slide it to the left (red) for making it unavailable.