Double-click an object in the interface or in the Module Browser to open the Revolving Property Editor with the clicked-on object selected.
Or, select an object in the interface or in the Module Browser and choose Props (Revolving or Fixed) from the pop-up menu (displayed by pressing mouse button 3 in the interface or the Browser) to open the property editor with the object selected.
Or, choose Properties from the Editors menu in the App Builder primary window.
The Revolving Property Editor will be displayed, with the object most recently selected in the interface or the Module Browser selected in the Revolving Property Editor.