Before you can use a clip on the timeline, you must first import the clip into your project. There are a few different ways to import a clip. The most common way is to drag and drop files from your computer into the section of the screen.
There are 4 different methods to import a clip.
Run OpenShot
Drag and drop multiple files at once from your Desktop to the tree.
Run OpenShot
Drag and drop a folder full of media files from your Desktop to the Project Files tree.
* All audio, video, and image files will be imported from this folder
While browsing files in Gnome, select 1 or more media files
Right click on the selected files, and choose
Choose OpenShot Video Editor (or the openshot command)
* Even after you start working in OpenShot with your files, you can still return to the file system, and right click on more files and choose OpenShot . It will add them to the currently running instance of OpenShot.