Go to Admin > Menu > Custom Menus > Create Custom Menus
Here you can add a Menu of your choice. For example Glassware. This Menu will then appear as the 'custom' tab in the Session Details (next to Catering, Beverages, Equipment, Staff, Logistics) . You can add as many additional Custom Menus as required.
Once a Custom Menu has been created, you can add individual items to this Menu. For example Red Wine Glasses, White Wine Glasses and Tumblers.
There is also Add a Custom Item option for each Event. For example if a particular glassware is not listed in your Custom Glassware Menu this can be added as a one off hire cost.