1. Create or customise a Giveaway in LiveReacting.
2. Open created Giveaway project and click on Settings (Gear Icon).
3. Activate the plugin and copy the URL.
4. Once you've copied the link, paste it in any software as web page *input source:
Click on + Icon in the bottom, and choose Browser. Paste the copied URL, fill out the width and height fields (1280 x 720) and press OK. The layer with Giveaway will be invisible, and the Giveaway won't start until you launch it in LiveReacting Studio.
5. Make sure to launch your stream via OBS first, and only then Start the giveaway in the LiveReacting Studio.