Yes, fonts as such can only be engraved on the Mr Beam surface. To cut a font, it must be laid out as the path of a vector graphic (e.g., SVG).
Cutting fonts is a somewhat more complex process since one usually does not want the letters to fall apart. If you want to cut fonts, you can do the following: In your graphics program, you must first convert the font into paths. Then we recommend removing the path fills and just adding a color to the stroke lines so you get a good picture of what is being cut. Lastly, you will probably want to connect letters or attach i-points to the trunk of the letter with a small bridge so that everything stays together well. You can now save the result as an SVG graphic, load it into Mr Beam II and have it cut out there. Attached is an example of a final SVG file ready for the laser cutting.