MAX7219 and Common Anode displays with LedControl

hello LordPants,
i came across your post, i am working on common anode double digit 7 segment so i need to know please where should i put the patch you share in the beginning is it in the LedControl same library or i must create a copy and name it differently ? because my project will contain 4 Common Anode double digit 7-segment and 1 single digit CC 7-segment and 19 LEDs so it's gonna have 2 MAX7219 driving these,
the first MAX7219 will be driving the 4 double digit 7-segemt and the other MAX will do the rest