editing prize money

You'd have to activate the respective competition(s) with the editor. Have a look at this video. It may be for FM15 and for national rather than international competitions, but the process to activate the competition(s) is practically identical. Once there, find the section describing the prize money awarded and amend it to your heart's content. Keep in mind you can only edit one nation or international competition at a time. Save the file(s), and when you next load up a new game, load the files and the changes you have outlined should be in place.

In that video, when he goes to add nation rules, it doesnt give you the competition. It just gives you the selection of either , Nation or League. I want to edit the AFC Cup in Asia, how can I do that when AFC Cup is a continental competition?

That's because the video is for a previous version of FM. There should be an option to edit continental rules in the new version's editor. Give it a go and experiment

An option to edit continental rules ? I am sorry but this confuses me haha

Have you tried loading the editor to give it a go? No offence, but perhaps it's best if you give the whole thing a miss as you don't really seem to be grasping the concept. And I don't want you to mess something up...

I have dyslexia, harder for me to understand wording.....