I have a form which is built with subregion, and those subregion with fields (a kind of dashboard). Every field is loaded asynchronously (i could fill each fields when data is calculated by database/application in different thread for each values). For the best user experience, would you display a loading image or text (~load time 3s) on each field, by "region" or on the whole form ? I did it per field and it looks like very strange. As asked in commend here a mockup who is more ore less like my project