[SCRIPT] Script help

[Vasco]

I'm working on my own Custom story at the moment (actually, this is my first Amnesia CS). I'm not good in scripting, so I already have some questions. For example:
- Is there a way to script an area to call a function when a certain type of entity interacts with it? For example, I put inside an area any random book (not a concrete book with a name "book_that_calls_callback", but a random one) or random barrel, random piece of human arm etc. and this calls a function?
- Is there a way to make a rope area inactive? Or how can I script a situation, when I use a "rope" item near a hole - and a rope appears, that can be used as ladder?
- Is there a way to make a player drop a thing that he is holding in his hands at the moment? For example, the player walks through the corridor having a barrel/chair/book/Stephano/etc in his hand and whenever he goes inside an area - he drops this entity, and he has to grab it once again.