I really need some help for my project(desperate)

[Reallead]

I really need switches.

I know they are most used for quests and that the quest don't start over again when you re-enter the map. and that you need the correct quest item to complete the quest.

i really need some help with this.
i already followed some video tutorials but i just don't understand.

i really need this to complete my project.

please help me 

 

[dadevvtsvre]

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