The Project Bin¶
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).
20.04+¶
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).
Options from Menu under Icon 2¶
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.
Menu under Icon 5¶
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 .
Menu under Icon 6¶
7 Filter by tags and stars
Menu under Icon 7¶
Filtering by clip type
Menu under Icon 7¶
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.
Create additional project bins¶
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
Closing the extra bins either by pressing CTRL + w or on the bin you want to close click on 
and choose Close .
Clip - Right-Click Menu¶
The images below show the menu items available when you right-click a clip in the Project Bin.
The menu items which appear when you right-click on an item in the Project Bin are also available from the Clip Menu.
If you want to reverse a clip you can do it via Motion Effects - Speed or by Duplicate Clip with speed change