There are several ways to add videos to a theory page.
It's possible to upload video files (mp4, webm). The maximum file size for uploads is 16 MB. Videos can be uploaded in the same way as images. Read more about that here.
When you go to edit the theory page, go to the General tab. Under "Upload", click on "Add files" and choose your video file.
After the upload, a link will appear that you can use to reference the upload. Make sure to copy this link.
Then, in the toolbar, click the Insert button. Choose Media in the drop-down menu. A pop-up window will appear with some options. Paste the reference link in the field labeled Source.
It's also possible to embed videos which are hosted on other sites. Here, we will explain how to embed a video hosted on YouTube.
First, find the embed code for your desired video. At the time of writing, this code can be found under the Share button underneath a video. Copy this code.
In the toolbar, click the Insert button. Choose Media in the drop-down menu. In the pop-up window, choose the tab Embed and paste the code in the input field.