Falcon 4 Resource Manager (F4ResManager) is a program to fully edit the resource files for Falcon 4 simulator User Interface. These files (with extensions idx and rsc) are compressed resources (pictures, sounds or binary data) that are used by Falcon in UI and it was not easy to edit them until recently.
Now, with F4ResManager, this task is easier than ever. Import, export, view and replace resources with a few mouse clicks. Check the manual at the Documents section.