Creating a Popup List with Scrolldown Menu
I would like to create a checkbox list with options A, B, and C for example.
Each of these options (A, B, and C) will be general titles of types of events, such as:
Conference, Party, and Meeting
I want to be able to, for example, check off conference and then a popup menu will generate with a scrolldown menu that lists specific conferences (ie: Leadership conference, Health Development Conference) and allows me to select all of the conferences a person is involved in. Can this be done?