Can I add symbols on my Prism graph to a text box?

The main Prism graph symbols are not from fonts, so can't be put in text boxes or copied and inserted into other documents. If you need to do this, instead of using one of Prism's basic symbols, try using the "more" link at the bottom of the symbol section of the Format Graph dialog. This lets you choose any character from any font as a symbol which then can also be put in a text box, legend, or Word document.