The official website has free font generator software
https://www.stoneitech.com/media/upload/Download/Software%20%26%20Driver/Font%20creater%20TS3.rar
you can look up the hexadecimal of the special symbol you need, for example á, as shown below, its hexadecimal is 00 E1, as long as the font you select and the range of font code can cover this special symbol, then you can create this font and use it.
The first picture is the range does not cover 00 E1, and the second picture is the one that covers 00 E1.
