How to assign keyboard shortcuts without conflict of previously assigned shortcuts.

I have keyboard shortcut for actions as below.

  1. CONTROL + Option + Upper Arrow Key : Maximize Window to Top Half
  2. CONTROL + Option + Lower Arrow Key : Maximize Window to Bottom Half
  3. CONTROL + Option + Right Arrow Key : Maximize Window Window Right
  4. CONTROL + Option + Left Arrow Key : Maximize Window Left.

Now, I'm trying to set up this.. looking for your help how to?

#1. CONTROL + Option + Upper & Right Arrow Key(at the same time press) => Resize Window to Top Right Quarter / Corner...
#2. CONTROL + Option + Upper & Left Arrow Key(at the same time press) => ...
#3. CONTROL + Option + Lower & Right Arrow Key(at the same time press) => ...
#4. CONTROL + Option + Lower & Left Arrow Key(at the same time press) => ...