Adds a thumbnail view similar to MS Word, including both heading and section grouping
当前为
Adds a thumbnail view to google docs, activated by button next to the (Add Tab) Button. Also has the option to group the thumbnails by heading. Zoom out and in with ctrl + and ctrl -.
1.1: Adds section grouping, rtl support, fixed a few bugs
1.2: Improved zoom mechanics, aligned icons
