25Live Pro allows you to add discrete options in the form of dropdown choices to event custom attributes you or your administrator(s) have defined. This functionality allows you to let event creators more accurately convey information with limited choices rather than a freeform text field.
Dropdown options for custom attributes show in the Event Details view and can be edited inline.
How To Access Master Definitions
To access Master Definitions System Settings views, your 25Live user must have security permissions set in Series25 Group Administration for each of the types that you wish to access, including:
Events: Admin 6.0 Manage Event Master Lists
Event Requirement Notification Policy: Admin 7.0 Set Event Notification Policy
Event Types: Admin 5.2 Manage Event Type Hierarchy