To change or set CNAME on your account, please go to Settings page and find Custom CNAME option part:
- Locate CNAME you want to use
- Click on Default switch button to make this Cname default for account.
You can manually set CNAME option on API calls by passing ?cname=ID to supported routes.
Also File Sharing/Embed modal offers CNAME selection.
To use media.publit.io again as default file URL just switch off default CNAME switch