How to insert a html type separator line in a OneNote page?

If such functionality is at all offered by this software.

I'm talking about <hr> Horizontal Rule.

Currently using OneNote 2013 Preview, if this makes a difference.

Solution 1:

Per discussion @ http://answers.microsoft.com/en-us/office/forum/officeversion_other-onenote/suggestion-add-insert-horizontal-line/498fe78c-93c3-4f38-9ffd-c720c605aad4 it seems to not be supported, though someone noted a hack:

File > Options > Proofing > AutoCorrect Options enter three underscore characters; in the Replace field enter a large number underscore chars.

Thus, entering three underscore chars and pressing enter gives you (almost) a horizontal line.

Solution 2:

Onetastic, an extension of OneNote, allows "Insert Horizontal Line" functionality by way of macro:

http://www.omeratay.com/onetastic/?r=downloadMacro&id=0B63F5F2A5EA41F1952B45D0E80402EC

Regarding the preview version of OneNote you referenced, you're may or may not be aware by now that OneNote (2013) is now free. The only limitation to the free version is that notebooks can only be saved to your OneDrive account and not locally.

OneDrive, by default, grants 15GB free which is decently sufficient for most notebook types and should you require the next level up, 100 GB will cost you €1.99 a month.

https://onedrive.live.com/about/en-ie/plans