Thanks for reaching out to the Community. I'm here to help you with entering the OMG stores in your QuickBooks Online.
You can look into using the location tracker. You can use the location tracker as long as all the stores are under the same EIN. If they have separate EINs, you'd need to purchase a subscription plan for each EIN.
Allow me to explain the location tracker. It's used to take data from different locations, departments, outlets, etc. and see all the payments for one location and deposit them as a group. Below I've included steps on how to set up and use the location tracker.
First, you'll need to turn on location tracking. Here's how:
Open the Settings menu and choose Account and Settings.
Click the Advanced tab.
In Categories, select Edit.
Place a check in the checkbox to track locations. Then, Save and Done.
Next, you'll want to add a location. Here's how:
Open the Settings menu again, then click All Lists.
Select New, then add the Name of the location you want to track.
Hit Save and close.
Lastly, you add them to the transactions. To do this:
Open your Transaction.
From the Location drop-down, choose your desired location.