On the top bar, select "Classes".
"Blue tick" to select the ensemble that you want to email.
Click on the "email" icon on the bottom bar.
Under "Send emails to", select "Both Families and Instructors".
Blue tick "Send a copy to all email addresses in the staff or enrolments family records".
Blue tick "Send a copy to me" if you want to.
Change the "Reply-To Address" to your own.
Enter your email subject and content.
Click "Send"
https://youtu.be/h6u5d60j3-c