Adding DB to MS Access

There is a database on Access, you need to add some functions.
The DB is a calendar of events for the restaurant. A new event is introduced, it is reflected in the calendar, from where it can be viewed, changed, deleted.
You must: add a menu for the selected event. The general menu in the table, you need a form in which you can choose from the menu of the dish, enter the number of each dish, get the amount on the selected menu. Then transfer the data to the main table.