Personal groups and lists

Personal groups and lists

We are looking for a way to create personal lists to send group emails.

For instance I have 3 people I want to put in a group or list called Company A.
When creating a new email, it can be accessed as CompanyA in the new email
composer via autofill or by Search function. This was a basic function of our old
email system and would like to see an equivalent. The Create Group function seems
to be broken. It pulls up accounts.zoho.com and you can give a group a name but you
cannot add any email addresses. It just sits there with a green box. You can see contact
but not add them.