Here is a concise summary of the provided text:
**Title:** Adding End Screens to YouTube Videos using YouTube Studio
**Summary:**
* Add an end screen to your YouTube video to increase views on other videos
* Requirements: Leave 5-10 seconds at the end of your video for the end screen
* **For new uploads:**
1. Go to YouTube Studio > Video elements
2. Click "Add" to create a new end screen
3. Choose a template or customize with videos, subscribe buttons, etc.
4. Preview and save
* **For already uploaded videos:**
1. Go to YouTube Studio, select the video
2. Scroll to "End screen" and click "Add"
3. Import from a previous video or create a new one
4. Adjust timing and save
* End screens can include up to 4 videos and multiple subscribe buttons, with a maximum element duration of 10 seconds.
Here are the key facts extracted from the text, each with a number and in short sentences:
1. **End card screens can increase views** on other YouTube videos when added to the end of a video.
2. **5-10 seconds of video end space** is recommended to accommodate end cards.
3. **YouTube Studio is used** to add end screens and end cards to videos.
4. To access end screen options, go to **"Video Elements"** in YouTube Studio.
5. **End screen templates are available** in YouTube Studio, or users can create their own.
6. **Elements cannot overlap**; a red overlay indicates overlap, and the screen cannot be saved in this state.
7. **Maximum of 4 videos** can be added to an end screen, along with subscribe buttons.
8. **End screen element duration can be adjusted**, up to a maximum of 10 seconds.
9. **Preview functionality is available** to review the end screen before saving.
10. **End cards can be added to already uploaded videos** by editing the video in YouTube Studio.
11. **"End Screen" option is found** on the right-hand side when editing a video in YouTube Studio.
12. **Saving changes is required** after adding or editing end screens for the changes to take effect.
13. **Added end screens are clickable**, allowing viewers to easily navigate to recommended videos.