What is "popup compose" and how to enable?

[chrisbaker]

Hi:

I'm trying to forward multiple e-mails at once from my "sent" folder to another address via webmail.  I'm using Classic View.  When I check a bunch of them and click "Forward," I get a popup that reads "You do not have popup compose enabled. Do you want to forward just the first checked message?"  OK or Cancel are the choices.  I want to just forward them all, not individually.  How is this done?

Thanks. 

[chrisbaker · Accepted solution]

Nevermind, I found it.

It's under Settings, Display Settings, Compose.