how do i delete the history of "content under viewing"?

How do I delete the history of "content under viewing"?

The content of "viewing content" can be deleted in the following ways.

1. Click 'show all' on the right side of the screen

For IOS or Android terminals, the paravi app can be removed in the following steps:

If you want to delete the screen, you can choose to delete it

If you want to delete the screen, please click on the left side of the screen

If you delete it with a personal computer, a smart phone, and a tablet, it is reflected in a television device and smart television.