Shawn I don't see a way to automate a tag if a booking has a specific SURCHARGE on it. For example a hot tub fee or a pet fee.
Is this still coming?
Yes. The current tag automations are just V1 so we could get the feature release out and allow users to get used to using tags and setting up automatons via the trigger system we already had in place for messaging. In future releases there are plans to expand on the functionality. Add-on/Optional Surcharges are on the list of planned improvements for this feature