A few Zerg Basics, about hotkeys - ho I do it / how Lowko does it

As Zerg player, you need to play quickly. Thus, it is necessary to train a lot.
First things you should train is:

- hotkeys for base positions
  (I put it on "ctrl+F1" to F4; later you press F1-F4)
- hotkeys for Hatches
  (I put it on "Shift+5" for every base; later I press 5)

If you like you can put all queens on "4".

So why these hotkeys?

- In a battle, you should be able to reproduce very quickly as zerg units die fast.
- Queen inject or not means a lot of units or not. Larvas are a resource!

How to do a fast inject?

* e.g.: F1 - 4 - v - click on hatch

Drawback: At first it feels strange, but you will get used to it.
Drawback: Sometimes you make mistakes at first and send your queens around.
Of course, you can use other hotkeys.

Edit:
actually, I was finding a video from Lowko, and I soon will try out his method (why not)