Hello wheretoplaygames,
Thanks for reaching out to us!
I assume you’re referring to the Filter bar being able to filter by tags? You’re correct that there isn’t a way to filter by the Venue’s State field, however you could use the “Event Category” to assign the state. This would be similar to using the tags on the separate install but would mean you wouldn’t have to hijack the “tag” taxonomy for your site just for the State filter.
Also, there isn’t a direct “sync” between the events and a google calendar. What you can do is download all of your events (using the “Export Listed Events” on your main calendar list view) and then import them into your Google Calendar follow the instructions from Google.
The closest option you’ll have to a “sync” will be to use the RSS feed generated by your calendar.
I’m sorry I wasn’t able to give you a direct response however I hope this was able to point you in the right direction.
Thanks!