Might be wrong spot but ill make it look like a guide.
type /macro
The first macro I make number 1!
type
/cast growl
/cast mangle
/cast lacerate
Doing this will throw up growl and all the neccesities for tanking makes life easier rather then having to fill up keys just to do all that
next macro i use is for holding multiple adds
/cast swipe
/cast lacerate
/cast mangle
tab through your targets and spam this macro but make sure they get the lacerate on them so you get a for sure hold but after spaming that on multiple mobs you can hold many at a time
For my charge macro I have it
/cast charge
/cast growl
/cast mangle
so if a mob is attacking a party member you can pull it right off the mate.
The macro i use to maximize damage is
/cast mangle
/cast maul
and just keep the going if you're waiting on your growl to come up
I also tend to keep lacerate for number 2 just incase you need to spamm it too while waiting for growl.
These macros are definitely basic in the end but i've seen a lot of druid tanks that like to do it manuely I use to be like that but after trying this it makes life that much easier and makes you wander why you havent used it before.