We have recently started using Zoho at our company. However I'm having some issues setting it up.

Specifically, I want multiple display names of my choice for the same email address and I should be able to choose which to show. I tried doing Add From Address under Send Mail as in the settings however it returns  FromAddress already Exists! if I put different name for the same email address. 

Please advise on how to set it up or whether it is possible at all. 

It was possible in Webmail which we used to have earlier.

Thanks