learn how to mod

alright it worked but now when i restart the mission the game forget the first stage i added, and how i can rename the objectives ?
thanks

By 'renaming the objective' do you mean changing the text that appears on screen when the objective starts? Does the game not do your cardboard tube collection stage when the mission is restarted?

yes i want to rename whats written in the small box when you start a mission

and yes this is whats happening when i restart the mission