[OSM-newbies] AgPifo

[ael]

I just tried this plugin following Frederik's announcement that he is
considering dropping the built in geotagged image support. I have a
couple of questions:

1) How do I zoom out of an image? If the answer is to use the mouse
wheel, what about when my mouse has no wheel?

2) http://wiki.openstreetmap.org/index.php/JOSM/Plugins/AgPifoJ
tells me that the menu which allows me to correlate with gpx tracks
appears on the  "contextual menu of the layer". I can't see this: where
should I be looking? I have tried selecting the layer and checking
various areas of the screen...

ael