How to change the decimal point on the numeric keypad for a comma

[jtec75]

I work using Excel and need to have numbers separated by a comma. My Belkin numeric keypad only has a decimal point on instead of a comma. Before I installed Excel 2016, I was able to change the decimal point to show as a comma when I typed it. Now, something has reset and I can't change it back to a comma. I have tried the Language & Region - Advanced - Number Separators - changed the full stop for a comma, but it doesn't seem to be working. It is really important for the speed of my work in Excel to be able to press the decimal point on my numeric keypad and for it to read as a comma to separate the numbers I type.
Hope someone can help.
Thanks a million.

 

[satcomer]

Just read the Apple Support site for the article OS X Yousemtie: Create keyboard shorcuts for apps

 

[jtec75]

Just read the Apple Supoort site for the article OS X Yousemtie: Create keyboard shorcuts for apps

Thanks so much for that. I've tried it but it seems it only works with certain actions. I just need it so when I press the decimal point on my numeric keypad, it shows onscreen as a comma.
Sorry if I'm missing something.