Learn Macro-ing in 5 minutes. Short Macro/Button guide for newcomers!

[Pyrolinkx]

It is infact /macroicon
But it will only show the icon and the cooldown/combo effects on the hotbar, it doesn't shows the tooltip itself.
It must also be the first line of a macro, as well. Made extensive use of that on Arcanist, making a micro-hotbar for buffing/healing my pet without hunting for it

Thank you RavinousKurohi and Skies! This will be very helpful.