A feature of the Catering module is that customers can increase the quantity of a modifier.  You have the ability to add a Qty to each individual modifier.  This feature will be very useful in minimizing the quantity of Modifier Groups over all. 

For the example below we have the Item "Burger Bar". 

It has a Modifier Group "Burger Bar Sides". 

Each of the Modifiers from Baked Beans to Mashed Potatoes, has had a Qty of 3 added from the Online Order dashboard. 

So the customer can add multiple Modifiers, in the same Modifier Group. 

Here the customer has selected 1 Baked Beans and 2 Jalapeno Poppers Modifiers.