Macros for Tokens

I'm new and I need a simple easy to read, short answer, on how to make separate macros to change to specific tokens.  As in when I click on a token I have my macros for that monsters, then when I click on a different monster it has separate macros that pop up. Currently it all just clumps together. I want to able to just click on the actions my tokens can do that cause/inflict damage, without having to have every single one for every monster up on the screen all the time

If you have made macros for specific monsters, then put them on the Attributes & Abilities tab of the sheet/journal for that monster.  Mark them as token actions, and they will only show when you have a token selected that represents that sheet/journal.  Anything in the macro collection tab that is marked as a token action will show any time you have any token selected.

Since you are a Pro, you can use the Token Action Maker API, assuming you are using the D&D 5th Edition by Roll20 Sheet.