Hi Johannes,

Thank you for reaching out and I'd be happy to address your questions!

The BEE Plugin sponsors our simplest-to-use editor, the Drag-and-Drop editor. The Drag-and-Drop editor is easy to use, but, sadly has limited capabilities with HTML or CSS. If you need to use a lot of custom HTML or CSS, we recommend using the WYSIWYG or Side-by-Side editor instead. The different template editor options offered can be found here: https://support.iterable.com/hc/en-us/articles/115002425483-Template-Editors-#the-drag-and-drop-editor

In regards to an "Undo" button, there is sadly not a button that has that capability with our current version of the BEE Plugin, but alternatively, you can view a template's edit history and revert a previous template save. You can navigate to the templates edit page and select the three-dot settings in the upper right-hand corner, and select the "Revision History" selection. With this feature, you can compare previous saves or revert to a previous save.

I hope that helps, but let me know if you have any additional questions here!

Best,

Julia