What's the deal with Header 4 ( + 4 on OS X)? Are there options to align under or to the right of Header 3? Also remove the overbar?

Couldn't find anything in Options Inspector.

• You can always define your own style sheet. Jan 7 '16 at 20:46
• I'm trying to avoid that, as I have a stack this big on metamaterials to read. Do you have an example? Would it require defining all the headers' behaviors or only H4? Jan 7 '16 at 21:13
• if you want to adjust this by making settings local to each Header 4 cell in your notebook then you need to set CellFrame->0 and adjust the CellMargins ...which you can also do using the ruler toolbar. Next step up is to make this a private style but Ideally you should make your own stylesheet. Jan 7 '16 at 21:46
• It looks like you are using the default stylesheet. If that's so, then what you call "Header 4" is actually "Section". Mathematica has many other stylesheets that can be chosen from the Format > Stylesheet menu. They offer quite a selection of different styles and keyboard shortcuts. Perhaps one of them will be more to your liking. Jan 8 '16 at 1:43