FM23 changes help?

Hello, I am looking to make the following changes to my game via the editor but I cannot seem to work out how to do so without causing issues. Can anyone help please?

• Increasing League Two relegation spots to 3, and National League promotion spots also
• Changing Scottish League Two to have 2 relegated, and then ignore the Highland/Lowland play-off and promote the winners of both leagues
• Giving Manchester City and Juventus points deductions
• Reimplementing Russian teams in Europe, and the Russian national team in UEFA/FIFA
• Changing the teams qualified for the Champions League, Europa League, and Europa Conference League

Any help is appreciated, I really wanna get these sorted before I start!