I have forms with many garbage import fields. It would be helpful if, when I select a field on the form and the Form inspector is open to the fields tab, that the corresponding field in the inspector would be selected (and vice versa).
Do you mean on the custom layout? Or on the Default Layout or the multi-column list view when you have a cell selected?
The Layers tab works this way to show you which object is selected. You can click an object and it will select the corresponding field in the Layers list. Or vice versa.