Meeting Invite issues

I have two issues when I create/schedule new meetings.

1.  My personal email addresses list in the “FROM” line and I am not able to change them or add my business email even though my business email is on my zoom account.  How can I add my business email address as a “From” option?

2.  I am unable to add client email addresses in the “TO” line.  Do I have to add all of my clients into the contacts before I can schedule a meeting with them?