How do I add receipient names to the "to" field in Zoho Campaigns

How do I add receipient names to the "to" field in Zoho Campaigns

Hi,

How do I add the names of my contacts to the "to" field of an email campaign. I saw an old topic on here that suggested this should be under advanced options, but my campaign doesn't show this option. Has it been moved somewhere else?

I have quite a high number of gmail accounts in my DB, and from experience, this is key to staying out of Gmail's spam box.

Thanks,
Neil