Adding & Editing Modifier Categories
Step 1: Within the Modifiers Tab under the Modifier Groups Section, select the 3 Dots 
and click on the Add New Group Option.
Step 2: Next, input the following:
Title (Example: Sushi)
Notes (Example: Sushi)
Mandatory? (Yes or No)
Visible to Guests? (Yes or No
Show Price? (Yes or No)
Once finalized, click Save and Close.