Thanks for posting this thread as I've just discovered that this (basic) functionality - present in all previous versions - has been removed in PD24.
A basic workaround would be to highlight all the clips on the timeline, then 'Edit' - 'Color' and your changes should be applied to all.
However, I have a specific problem with the removal of this functionality - one of my workflows is to set up the project in PD, arrange and edit the clips in the timeline and then take one of the clips into ColorDirector for the colour corrections. I then return to PD and use 'Apply to All' to add the colour corrections to all the clips. This is a very simple, intuitive process, quick to do and very effective. It appears to have been removed for no good reason whatsoever!
This is ironic for me as the only reason I subscribed to PD365 was to get better integration with ColorDirector! I now face having to manually correct each clip separately in CDR before rendering the final edit. How is this an improvement?
Paul