multiple choice address "from"

multiple choice address "from"

I have several email accounts licked to my zoho account. I rep for different companies. When I enter a lead and want to send an email it goes to the default email and is sent "from" that account. How can I choose one of the other account to send from and still have it saved in the lead information? Or can I assign each lead to the email account I wish to communicate from? Or better yet can I make a drop down box and choose from which email to send each time I communicate with a lead or contact?