Custom Font and Custom Buttons?

Hi,

I am looking at having a Medieval Latin On-line Text Editor, and I have my own custom truetype Unicode font I would like to use (that includes the 26 special medieval Latin symbols users will need).

Q1: Is it possible to use a custom font (and ONLY use this font)

I would like people to be able to type, but when they want a special Latin character I would like a custom button, so that clicking that button inserts the special character depicted on the button face into the text. There are 26 special medieval Latin symbols, so 26 buttons would be needed. This is preferable and faster (to me) than a single Symbol button.

Q2. Can custom buttons be created to insert a specific symbol into the text?

Thanks

Wibs