In a form, drop-down menu options can be created from a number of sources - including flows. To create drop-down options from a flow, first create a flow that is configured to output the required information for the drop-down options. Then, in the Form Designer, create a form with a Drop Down List...
Drop-down controls can source and narrow their available options based on a variety of outputs. One common requirement is to display options in a drop-down list that are dependent on options previously selected in another drop-down list...
The Drop Down List form component also functions as an incremental search box, allowing incremental search against any input. To create an incremental search box, place a form containing the Drop Down List form component within your flow and define the List Input Source (typically, another flow)...