Configuring wireless keyboard on a macbook pro

Hey everyone!

I just installed a french wireless apple keyboard to my macbook pro.

The problem is that some keys are not the same on my macbook keyboard and on my wireless keyboard. For instance, on the wireless keyboard I have the mute, augment volume and lower volume buttons that are on the F10-12 keys whereas on my macbook they are F3-5 keys. How can I change the configuration so that the keys on my wireless keyboard work?
Also, i have on my wireless keys such as next song, previous song, play/pause that are not present on my macbook keyboard. how can i make those work?

I already went in system preferences>keyboard and settings>keyboard. But could not find anything helpful....
If so noble soul could help me I would gladly appreciate it!

Also I'm sorry if i didn't post this in the right section.....

Thanks in advance!