Customizing bullet points

Hi,

I’ve fomatted a textfield (myTextField.bullet = true) so that each paragraph shows with a bullet point. I’d like to be able to change the symbol/character of the bullet point to a tick or a cross instead of the round dot that is the default.

Can this be done, or will I need to have a second textField, formatted differently that scrolls with the first textField that will display a dot, a tick or a cross in the same positions as the paragraphs in the first textField?

Thanks in advance,
BB