Build 2172 adds the ability to disable images from the 3D View just by digitising a polyline around them.
The first step is to click the “Disable Images/Remove Bundle Points” button (
) in the 3D View toolbar.
Then digitise a polyline around the cameras you wish to disable using the left mouse button. For the final point, hold down Ctrl and click the right mouse button instead. The “Disable Images or Delete Bundle Points” dialog will appear:

Click Yes to disable the images within the polyline you digitised.