If you're using YourMenu with your POS system, you can simply create the Item in your POS and sync with YourMenu. If you do not have Auto-Sync enabled, please go to the YourMenu dashboard on your POS or computer and hit Sync.
To create a new Item in YourMenu:
On the YourMenu dashboard, go to Menu > Items
Click Create New Item
Fill out the required information and any additional information needed to configure the Item.
Once complete, click Create New Item on the bottom right
You can now scroll down to add the Category, Modifier Group and Tax Rates
Once complete, click Save on the bottom right
To edit a new Item in YourMenu:
On the YourMenu dashboard, go to Menu > Items
Scroll down or use the search feature to find the Item you wish to edit