Customer profiles now have their own Communications tab. Open any customer from Customers and you'll see your HighLevel text messages and call history with them in one place, the same view you already get on a reservation's Communications tab. Click Refresh to pull in the latest messages, or use Send SMS to text the customer without leaving ToteFlow.
To keep you on the right side of texting consent, ToteFlow won't send a text when the contact has SMS do-not-disturb turned on in HighLevel, and you'll see a heads-up banner when a customer hasn't opted in to texts yet. This works for any customer who's linked to a HighLevel contact once you've connected your account in Settings → HighLevel.