It is already possible to directly replace (swap) clips inside the project bin by editing the project file in a text editor.

But I suggest a native feature in KDEnlive's graphical user interface that can directly substitute clips inside the project bin.

Sounds interesting, can you give a usecase? What would happen if the clip in already and is 10 seconds long and you substitute it with a clip 4 seconds long?

farid wrote:Sounds interesting, can you give a usecase? What would happen if the clip in already and is 10 seconds long and you substitute it with a clip 4 seconds long?

Use case: Replacing images.

Also, if the length does not match:

How would KDEnlive handle it if two files swapped their names?

Example:
* Video1.mp4 is inside the project.
* KDEnlive closed, project saved.
* Video1.mp4 gets overwritten with different video file.
* KDEnlive opened.

If the substitute is too long, just cut it off where it hits the next clip.

If it is too short, just insert the available parts.

This feature could also be very useful for templates.

Those can be put into project archives and shared online.

fsckdsk wrote:It is already possible to directly replace (swap) clips inside the project bin by editing the project file in a text editor.

As far as with 20.08.3, this is no longer possible. I've spend quite a time trying to replace a single clip but it always complains the <producer>s are corrupted. Thinking it's checking not only filenames and hashes but all metadata and, if something doesn't match, it yields an error and won't use the replaced one.