Display data from identifies the field in your table that your field object on your layout references. It is not used to specify a value list.
Select an option from "control style" to specify a style that requires a value list: Check Boxes, Radio Buttons, Drop Down List or Pop Up Menu.
Then select your value list from the Values From drop down.
Value list are used in a drop down list, radio button, check boxes and pop up menu. You select the field that you wish to be a down list or popup then from the inspector under the data tab, will will change the control style to drop down list or popup menu, then you will select value from. You can create a new list or use a list you aready created.