PowerApps - Add new choice to Dropdown List & Lookup item from other SharePoint List with Combo Box
PowerApps use Combobox search text to add a dynamic value to SharePoint Choice column
How to create custom Dropdowns | PowerApps Tutorial Step by step
[DEMO] Add new/custom item/choice into Dropdown list in Canvas App
Combo box control in Power Apps | Search, Filter, Large Data, Default values
PowerApps | Convert Single Line Text to Combobox or Dropdown Made EASY
PowerApps - Populate Combobox and Dropdown with specified SharePoint field
PowerApps for Beginners - Combo Box Type in Choice
How to Use the Power Apps Drop Down List Control
PowerApps Combobox - Search, Filter, Default values, and more
Power Apps Combo Box DefaultSelectedItems
Set Default Values in Power Apps | Dropdown, Lookup, Choice, Date | SharePoint
Dynamic Repeating Combo boxes in Power Apps
PowerApps - Add an "All" to your Dropdown Lists - Dynamically!
Power Apps Drop Down List Control
PowerApps - 2 ways to populate dropdown / combobox with multiple fields concatenated from SharePoint
Cascading Dropdowns in Power Apps from SharePoint list or Excel
Working with SharePoint Choice columns in Power Apps
Beginners Guide Combobox & PowerApps with Basic Form
PowerApps set default value based on another field from a dropdown