To reduce code side, I'd suggest to use the same method for all F* keys like:

onF1: "fKeyPressed", 

then use a generic fKeyPressed methid like:

```javascript
fKeyPressed: function(inSender, inEvent) {
   var k = inEvent.some-stuff-hidden-there-that-ill-let-you-find ;
   var fk = k + 'key' ; 
   this[fk] = localStorage[ fk.toUpperCase ];
   this.$.ce.insertAtCursor (this[fk]) ;
}
```

Hope this helps