If your email campaigns includes text that is not part of an image, it can be edited instantly in the Bridg message composer.
To do so, navigate to your message on the Blasts or Automation page. If the message is part of an Automation campaign, click "View Messages" on the Automation page, Edit, and select the Design Tab.
Hover over the text you wish to edit. If the text highlights, it is editable. Click and begin typing the text you wish.
Once you've typed the text you want, be sure to click Save and Exit at the top of your campaign, for your changes to be saved.
It's also always a good idea to send yourself a test email to see how the final email looks. You can do so on the same page (just enter your email address in the Send Test Email field), but be sure to click Save and Exit at the top once you're done.