It should would be helpful to all us potential modders out there if you could start a new modding category called "How to's" and thereby create a modding database of specific areas that provide detailed explainations of how to do it. From start to finish/save.
How to: Change the population/production of cities
How to: Change unit strength and composition
How to: Add or subtract units at start of game
How to: Change leader stats
These are examples are specific questions that I have and would appreciate any help to tell me where I can learn how to do these things.