thank you for your answer. I understand your point but, in this specific case (and I dare say I'm not the only one in this situation), I take care of everything and then, finally, just let my co-host know what time she should be there for check-in/check-out. I handle the guests. So, being a host herself, she's bombarded with all notifications for her properties, with all its ramifications (e-mails, text messages, app alerts), as well as mine. Anyway, I'm pretty sure when they launched this feature you were able to choose exactly what you wanted to share with your co-host, including wheter to have him/her copied on the conversations with guests. But as they change features on an almost daily basis, it seems, that option is now gone. Maybe they can bring it back? thank you again!