Submit for conditional moves
In a recent game I was in the middle of setting up conditional moves when my opponent moved and the condition went through. Before I knew he moved I decided that wasn't the right move to make but it was too late. I know some will say that I should have used the analysis board first, but I actually did and thought my mind was made up, but still changed my mind. I think there should be a submit button for conditional moves, just like regular moves.