![enter image description here][1] [1]: /editor/20160828/57c20419779e6.png In editor, you can right click the PCB to delete them

`If I click them, it shows a tick symbol in the top right corner. What does that mean?` The images you are referring to are in the **Cover** your section of your project under https://easyeda.com/my-projects/ that you enter when you have clicked the `Edit` button. The tick in the image is to indicate which one is shown as the 'Cover' image on the **https://easyeda.com/explore** page.

Doh! I'm so stupid! I didn't try that. Many thanks!

@andyfierman AH! Thank you very much Andy. Much appreciated.