Guide

1. Head over to the left-side panel and click 'Content'.

2. After that, hover your mouse cursor over the video you want to edit and click its corresponding 'Details' button.

3. Under the Video Details section, click the 'Title' field and replace the default title with the new one.

4. Once done, click 'Save' in the top-right corner.

5. After completing these steps, the title of the selected YouTube video will be changed based on your input.