This article will cover the topic of how to use the Screen9 Add-in for SharePoint.
Note that for SharePoint Online Modern UI and On-premise 2016 + FP2 we recommend using the Screen9 SharePoint Web Part based on SPFX.
Add a web part
Go to the page you want to add a video to, choose to insert a Web Part, select "Screen9 Video" and press "Add".
Edit the Web Part
Open the drop down menu in the top right corner of the Web Part and select "Edit Web Part".
Add a video
Press "Add video" in the web part to bring up the Console where you can upload, manage and select a video or live event from the Console to insert on the page.
Insert a video
Press "Insert" next to a video or Live Event to insert that video or Live Event on the page.
The video will then replace the Console on the page.
After inserting a video you can either press "Clear video" in the top left corner of the Web Part if you want to select a different video or if you are satisfied with your selection and done editing simply press "OK" on the right side in order to confirm and apply changes.