That would solve it until I needed a 4th, 5th etc. It would just be easier to enter the name, email and reply email to on the campaign.
Can you add another radio option under Sender Options. We have a need to send out emails using a specific name and email address for different campaigns. The only way to do it now is to change the global user to what we want each time we send it out.
1. User Can choose to send Mass Email and use Global Sender name/email defined on setup page or go for logged in user name/email or can go for record owner name/email.
User can choose to send a Bcc Email to the user and can do a Global Bcc to a Email Address.
2. Setup for Global Sender Name ,Sender Email and Global Bcc Email.
User can choose for the Global Sender info while doing Mass Email from Campaign 
button or from Mass Email Wizard 
Tab.
The info of global sender and global bcc can be setup from the MassMailer Setup tab under field information.
3. Work Flow for Campaign and Mass Email Wizard.
A: For Campaign
Click on 
Button and then 
and user will see the options of Global Sender Information ,Logged in user or Record Owner.
B: For 
tab user can choose the sender information on Step 4. Review and Confirm
MassMailer Team