1. Add the Component to Your Screen by dragging the MultiSelectGroupedDropdown block to your screen.
2. Prepare the Input List by Creating a List of structure DisplayItem with the following fields:

    3.Populate this list before passing it to the dropdown block.

    4.Set the Input Parameter by passing the list to the block’s Items input parameter.

    5.To handle the output

• Use the OnSelectionChanged event to respond when a selection is made or changed.

• Use the SelectedItems output parameter to get the list of selected item IDs (Text List).