I need help with scripting! SCRIPT INSIDE

[Tottel]

If you actually read that post, then you would have seen

AddEntityCollideCallback ("Player", "ScriptArea_1", "MonsterFunc1", true, 1);

is placed inside the Onstart() function.
And MonsterFunc1 is the name of a function. The name does not matter at all, as long as it's clear to the scripter.

Now, what happens is this: You add a colideCallback, which triggers when the player walks into a ScriptArea (ScriptArea_1 in the level editor). When that happens, the function is triggered. In this case, when you walk into an area, a Grunt goes active.