Hi!
First of all, the google translation of Turkish is fine here. I understand it perfectly (however see note on #2) below:
Recommendation 1: Having six unique defenses during war, rather than just one.
This idea already exists:
Please vote there if you like the idea.
Recommendation 2: (I did not understand …please explain)
Recommendation 3: Click on friend’s avatar/picture to see their heroes
You can already do this, if you can find the alliance of your friend. Search the alliance, click the avatar of your friend and you will see their current raid defense heroes. Do you mean, you want to see all of their heroes?
Recommendation 4: [practice fight] team-mates or map sections.
This also already exists:
[Implemented -- V35] Practice Battles or Raids Against Teammates in Alliance [MASTER]