Need help with a macro

I have created a macro for X4. My question is, I want to have a symbol per letter. So one symbol will be A, another symbol will be B, etc. So someone can type in a word, click a button and it shows all the symbols they chose.

I am guessing I save each symbol separate with a filename of like symbol_a, but how do you get it to identify what you typed to the letter and to display each letter/symbol out in a line?

Right now if I click the button, it imports a letter(symbol) showing it, but there aren't any tutorials showing how to use a textbox. I am assuming I would grab the text with something like TextBox1.Text = "Data imported successfully"

Thanks