I tend to zoom in and out A LOT when creating missions, as I like to get placement of units just right and then zoom out for an overall view of my units. Going back and forth between the views has worn out three of my mouse wheels (so far), so I'd love if there were some additional options for zooming in and out in the ME. A few ideas that I had that would be nice:
-Modifier + Mouse Click and Hold and move for zoom (so like Ctrl Click and Hold and move the mouse up for zoom in).
-Modifier + Mouse Click and Hold to draw a box that your screen would zoom to once you let go of the mouse button.
-Heck, even a sensitivity bar in the Settings somewhere to increase the amount of zoom the mouse scroll wheel does.