Remove value in Firebase Database

How can I remove these values inside Firebase Database by using blocks? I only want to delete values, not tags and project buckets.
屏幕截图 2023-06-08 051427

Every tag must have atleast one value inside, you can’t store a tag without value.

And to delete value, use firebase store value block and set tag name which you want to delete and set value to empty string, this will delete the corresponding tag.

They save the fb tag with empty value… simple. So tag will be retained but value alone will be disappeared