When studying biology and mechanisms, it's very useful to take notes with arrows that illustrate a stepwise process: A --> B --> C and up/down arrows to denote increase/decrease. This is very straightforward in MS Word, as I just assign a key to the arrow symbols I need, but I would like to be able to do this in Google Docs so I can continue collaborating on my work.
I've come across Google's keyboard shortcuts for Docs, but I'm specifically looking for a custom keyboard shortcut, which I can't seem to find anywhere.
If this feature isn't available in Google Docs, is there a clipboard-type program that would give me the same result? I'm on OS X Mountain Lion.