This is called embedding a picture and the steps are pretty simple:
- If it is a screenshot/picture taken by you, make sure it is uploaded first! If you are not sure how to upload a picture see our Knowledge Base guide here.
- Right click the online picture and select "Copy Image Address" as shown in this spoiler:
- Embed the picture into your post by clicking the mountain button on the top of your post creation window and pasting the link in the box that pops up and selecting insert such as shown here: