Appointments+ CRM

Good day everyone. Questions...

1st, When creating an appointment for a registered user, does selecting the users name from the drop down supposed to fill in the stored user's information?

2nd, How do I update the users information in their profile? It's grayed out and I can't access it.

Please help, I have to manually enter in this information each time I setup an appointment for people with standing weekly appointments. When it syncs with Google Calendar there's no client information listed. I need this in case I need to contact if they are late and I'm not at my computer.

Thanks to any help you can offer.