An update to version 8.3 has been released. It includes the new functionality of the Form Designer that allows developers to graphically resize form width, column width, label column width and individual controls on a form.
See the short video here: https://www.youtube.com/watch?v=_ypIap2HZfI
IMPORTANT: you may need to refresh your embedded browser by clicking on the Refresh icon in the Form Designer toolbar.
So you haven’t update to version 8.3 yet, update now!