quests help

i need to know how to mark a quest as completed/failed after creating it. heres my problem....

i have several quests created. when i want to mark my first created quest as completed i cant because my only options is "last created quest"

im guessing i need a variable for this to work, but i dont know what id have to do. i tried somin like this.....

variable name = bandit
variable type = quest
initial value = 0

but then when i use......

Quest - Mark Bandit as Failed

it doesnt mark it as failed. im at all familiar with variable, arrays, etc etc... but i tried to mess with it before having to ask you guys. couldnt get it. sorry :(

any help would be great. thank you!

after the quest is created make a new action where u go to : set variable and put :

bandit equal to last created quest

then it will work

ok that works, now i have another question. i have my map so at the beginning it creates a visibility in the hero selection region. i need to know how to disable this for a certain player after he has picked his hero.
under the disable visibility modifier options there is no choice for "disable visibilty modifier for player ??"

any help is appreciated. and thank you Slugge for your help. i have the quest working now.