The Project Bin is a view in Kdenlive which lists all the clips that are associated with the project. In earlier versions of Kdenlive this view was known as the Project Bin. In addition to the new name, versions 15.04 and higher introduced two new options to the view’s toolbar. The list following the example describes the options represented by the icons on the toolbar (identified by the numbers in the screenshots).
1, 10. Opens the Project Folder in a window for selecting video and audio clips to be added to the bin (1). Or double click on free space (10).
2, 10. Displays a drop down list for adding other clip types to the Project Bin (2). Or right-click on free space (10).
Create Animation… (new in version 22.08)
3, 10. Allows you to add folders to the Project Bin (3). Or right-click on free space (10) and select Create Folder to add folder. These are not actual file system folders but virtual folders to help you organize large Project Bins. See Create Folder
4. Deletes the selected clip from the Project Bin (but not from the file system).
5 Color tagging.
New in version 20.04.0.
Edit tags: double click a tag for changing the description.
New in version 22.08.
You can: add, delete and reordering tags.
Reordering tags: grab a tag and drag it to the desired place in the list.
6. Brings up additional options shown below for customizing the Project Bin view .
7 Filter by tags and stars
Filtering by clip type
8. A search box to display all the clips in the bin whose filenames or titles contain the entered text.
9. Number of times this clip is used in the project timeline
Clips can be dragged from the Project Bin to the Timeline.
New in version 21.12.
You can create various bins from folders you have created. Right-click the folder name and choose Open in new bin