Hi @Anonymous,
I think I have mentioned that this Items property is for Gallery, because TextInput does not have an Items property.
Please try to learn more about the control and search properties for control in property search bar.
In addition, I don't really get what you want to achieve in the canvas app, what do you mean by repeating fields and text options.
I thought you want to add TextInput as how many you select users from the Combo Box.
Is there a way to have the textboxes display a value from the combobox?
If Combo Box allows single select, set the Text property of the Label as ComboBox1.Selected.ColumnName.