I am still testing sending emails. Now just trying to edit be more professional design for template and email text sections.
But I could not find preheader text area to edit.
You know when email comes up to inbox, there is a second line on the subject (you called pre header text)
I would like to edit it every campaign when I send. Is that possiable?
It is in the template that you selected on the Format tab. Probably the “simple responsive template”. Having the preheader in the template, instead of the message body, is of no real use, so you may as well remove it.
You might want to look at the Content Areas plugin, which does allow you to enter preheader field for the campaign. On the Manage Plugins page follow the “Find plugins” button.