I had not noticed the custom character button untill now.  I can quit using "alt 0162".

Lots of new buttons to play with.

I notice the Superscript button ² is different size than the custom superscipt ². 
I haven't used footnotes since college.  Or    π r²  Had to use "alt 227" as Pi in custom character looks different -  Π

http://tlt.its.psu.edu/suggestions/international/accents/codealt.html

I see spellcheck is not working right now.