If I want to scale all my still images to say 1920 x 1080 and un- tick "Default to frame size" it works fine,but if I want to fine tune the all the images to not quite 1920 pixels , it will not do multiple images using the fx Motion Window. ( the window seems to disappear) ?
Why not.? I know I can set the image size in Photoshop and I do , but, why not on the timeline ?
If I am following what you want to do, then you can apply a change to the Fixed Effect Motion>Scale (Effects Control Panel) for the first Image, then Rt-click on that Still, choosing Copy. Now, Select all Stills, to which you wish to apply that Scale setting, Rt-click on them, and choose Paste Attribute. You will want Scale to Default Frame Size unchecked.