[FR] exclude some directories from backup

I've set up an extra ftp account for a user to receive backups from external servers in a separate directory.
The backup feature also backs up this backup directory. That is unwanted.

It would be nice if you can add multiple directories to exclude from backup in the CWP web gui.

In the meantime, where (which file) can I add such an exclusion manually?

same problem here, any suggestions?