Locked Hatch found being open by itself?

[Slanderous]

You can, perhaps, hit "static physics" in the entity tab.
Then do an script area around the hatch, like this:

Spoiler below!

Now I guess you want to make player say "it's locked" when touching it. Go to your map script, and paste this code:

void int01(string &in asEntity)
{
SetMessage("Messages", "name_of_the_message_to_show", 5);
}

Put the "int01" here:

Spoiler below!

(Tick also "item_interaction" in the same window, below)

Of course "Messages" is the category in your extra_english.lang file, and "name_of_the_message_to_show" is the entry name of the message to appear.

When you do script, simply make the key or everything else you want to be used on the script area, like this:

Spoiler below!

PHP Code: (Select All)

void OnStart()
{
AddUseItemCallback("", "key_name", "ScriptArea_1", "UnlockHatch", true);
}
void UnlockHatch(string &in asItem, string &in asEntity)
{
  SetPropStaticPhysics("hatch_ceiling_1", false);
  SetEntityActive("ScriptArea_1", false);
  PlaySoundAtEntity("", "unlock_door.snt", "hatch_ceiling_1", 0, false);
  RemoveItem("key_name");
} 


It should work fine, if you do this correctly.

EDIT: Forgot to put one thing, fixed.