Filament Blocked Sensor

When the filament is blocked due to unrolling problems on the reel, the printed is often destroyed. To prevent this to happen, I made a switch that switches the printer into "PAUSE"-mode, until I have solved the problem. In Marlin there is already something prepared for the "Filament Runout Sensor". After pressing the "RESUME"-button the printing proces gets on at the latest point.
See attached Word document.
RepRapWorld helped to make the changes in Marlin and get the thing working. Thanks!