replace or skip options on existing files
Use cases
When copying a large set of files and marge/replacing them, some more options would help to make the copy better.
Desired behavior
Copying a set of files where one of them has been modified, we should be able to skip all files except the ones that have changed. Some possibilities might be a checkbox "skip if the same size and modification date", or instead of a skip button, "skip if same size and date" or something to that effect. i know the options could get very granular which will break simplicity, but i think we can find a better balance.
Benefits of the solution
Merging directories will be better.
Possible drawbacks
It might get annoying if there are too many prompts slowing down the copy. An alternative to that might be to option-drag which can bring up a prompt for all of the options before it even scans to see how many files it's copying.