When you add the text field, check box or radio button, etc., you can drag the edge of the box to resize it or move it to another place. Press the Delete key to delete it. When you open an interactive form in PDFelement, you can right-click a form field and select the "Properties" option to change the settings of the field in the pop-up Properties dialog box. For different fields or boxes, you will get different properties. Here is an example of the Text Field Properties:
(Note: You can hold the Ctrl key and select multiple fields or boxes at the same time, right-click one to choose Properties, and the common properties will be enabled to change. Then the properties for all the selected fields or boxes will be changed)
You can set the tab order of the form you created. The order number will show on the top left corner in the form field. By default, the tab order is the order of creating these fields and buttons. You can change to set the tab order as needed.