Missed my question.

Hi, I have a few questions;:

My client offers a 2-month in-person program and a 6-week online program and a recurring coaching program.
1. Is there a way to display duration as 8 weeks and 6 weeks (programs) within the booking settings to reduce confusion? (not hours/days)
2. Also, since programs start on specific date/length, how can we show only that start date as a selection instead of open availability on entire calendar? Only want 5/10/26, then next program start 6/15/26, etc. Can I hide duration? I have it in copy.
3. Can clients connect their own email smtp per client (e.g., Acumbamail, SendFox)?
4. For SMS usage, does the agency need to purchase credits first and bill the client when they want more, or can clients purchase SMS directly thru you and they pay for it with their account method?