How to make substitution? I watched today my match live, and I couldn't figured out how to make it, can't drag players or anything...

When you are on your homepage and see the heading "Fixtures next 3 days" under action you can click on the link that you can make your formation and at the very bottom you can make 6 people into you substitution.

To make your substitutions work you have to click on the green and red arrow, this will bring up a box for whom to come off and at what time.

Oh yes, thank you! I was thinking that I can make substitution during the game, but ok, I know now, thanks.

At this moment only prefixed substitutions are possible in the create line-up page. In the future live substitutions including tactic changes will be possible.