Macro: Button:1 - Button:2

I am out of space on my bars, I need to make some macro for buffs.
I need something like I used in TBC:
/cast [Button:1] something
/cast [Button:2] something else
How to make such thing in vanilla?
I need something like I used in TBC:
/cast [Button:1] something
/cast [Button:2] something else
How to make such thing in vanilla?