If you haven't seen the power of some of the Atto plugins, you might want to take another look!
Yesterday, I installed two Atto plugins: Drag and Drop Files and Word Docx Import. You can watch the video below of how quickly you can get started building a Lesson by drag and drop Word documents right into the Lesson. It brings over all the text, basic formatting, images, and equations. The drag and drop plugin allows you to drag any file into the text editor while the Word Import does it's magic of importing the content.