You could modify one clip then whilst its still selected find ‘Make Favorite Motion’ under ‘effects’, you can then select all and drag this effect onto any clip and it should change everything – this is probably only going to work if all your clips share the same dimensions and aspect ration though!
Or, if you select a clip that has the right settings, copy it, then select the other clips and ctrl+click choose ‘paste attributes’ it will bring up a dialogue of all your motion options. (So far I’ve only tried this on individual clips though but I dont see why it would do batches.)
Stuart