The software adds a new category to the JDeveloper accelerator preferences:
Select the "Jalopy" category and specify your preferred keyboard accelerator for the provided actions. The "Format" action is by default associated with Strg+Shift+F10.
Please note that the accelerators are global and the "Format" action considers the current application context, i.e. if the editor view has the focus, the accelerator triggers the formatting of the active editor. If the System Navigator contains the focus, the accelerator trigges the formatting of all selected nodes in the Navigator.