Adding a watermark through the clip editor:
Go to the video you want to edit, then open the "Branding" tab – there you can upload and position your watermark.
You can also save it to your template for future uploads.
Adding a watermark through a custom template during video configuration:
When uploading a video, in the modal window you can configure text settings, including the watermark – from the "My active template" tab, go to the "Branding" tab – there you can upload and adjust the position of your watermark.