Customizing text symbol palette in Creo 2

Hello- Looking for some help.

I would like to customize the text symbol palette to include commonly used company symbols.  I've read in the system administration infomation guide but it's not too clear.  I'm wondering if someone can explain it in a way that I will understand it.  Or maybe someone can share an example of how their text symbol palette layout file looks.

Just to be clear, this is the symbol palette I want to customize.

Thanks in advance,

Jason