If you want to make screenshots and just save them locally, say for further editing, you can configure this in the configuration panel (presented at 1.15 version). You can save the screenshot and upload it later.
Check on Save local copy of captured files checkbox.
Then set Default action to None (so image won't be uploaded), and Copy to clipboard to None ...more»
How to capture video of your desktop with your voice comments.
You can capture video of your desktop activities with Grabilla - give it a try.
To capture video you need to check Video mode checkbox and after that Grabilla will capture video instead of static picture.
You need to select desired area for video capturing or you can capture screencast of ...more»