attached the edited component files of 7segment (single and 4 7seg.) components.
just replace the original .c files with these ones in components folder of your FC installed directory.
also make sure to back up the original files, not necessary but you can easily revert back if you think your code size has increased and you dont want custom characters.

LUT file is also uploaded for reference while defining the variables(small description is given in the file.
hope this helps ...

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Regards,
Prashant