Many but not all of the clips attributes can by copied to other clips. (in the clip menu: Edit clip Keyframe -> copy keyframe attributes in the source and paste keyframe attributes in the target).

You have to experiment a bit with this option, because not all changes to a clip appear to be copy-able by this. E.g. cropping of images can by copied to all images.
Changing the size and position of a video clip can also be copied to others, but e.g. the border (and e.g. the Chroma Key) of a video clip appears not to be copied to other video clips.
I dont know whether this is intentional or even that there is some logic behind this. The manual writes that all keyframe attributes can be pasted. Well, clearly that is not the case.... Maybe it only applies to the keyframes listed when you open the keyframe settings room (edit clip keyframes -> Clip attributes.....), the border and Chroma key are not listed in there.

So, as said, maybe do some experimenting yourself to see what works and what not.

Quote Many but not all of the clips attributes can by copied to other clips. (in the clip menu: Edit clip Keyframe -> copy keyframe attributes in the source and paste keyframe attributes in the target).

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Thank you. Yes, I have the same challenges. The copy/paste does not seem to function for cropping.
I thought of selecting all the clips but the crop option is not available for multiple clips.
I produced it and then pulled the mp4 file into the PD as a raw file and have cropped it.
Not the ideal solution but that is what seem to work for now.

Thanks again.

The usual way to get around any Copy/Paste Keyframe Attributes limitations is to make copies of the edited clip then drag the new clips directly onto the copies from the Media Room. This discussion has more details.