Hey @SharonR53, thanks for sharing your feedback. Due to the newer Third Generation Editor being 100% mobile responsive, we unfortunately don't have a way to convert the older editor's templates to the Third Generation Editor as they were not originally built to respond to mobile devices. Due to them having such a drastic difference, the only way to "move" an older campaign into a Third Generation campaign is to recreate it within a Third Generation template. I know this isn't an ideal solution and we've definitely worked to help make this easier by adding new blocks like the 5x1 content block, the option to edit background colors in blocks, and more.
If you have a specific campaign that you aren't able to remaster in a mobile responsive template within the Third Generation Editor, I'd be happy to take a look at it and see how we can make this process smoother. As a side note, you do have the option of copying the Legacy Newsletter campaigns which will allow you to edit the content and send it to your contacts.
... View more