Pasting as plain text is a good idea when you want to use text from other sources in your campaign created from Benchmark Email. This will strip away any coding associated with it and prevent issues with your template layout.
To paste as plain text:
Note: In some instances, you’ll see the TinyMCE logo when editing a text block. TinyMCE is a 3rd party we use to make our Drag and Drop better and faster. The logo will not appear in your emails, but only when you are editing a text block.