Working with C4Explosive item

Hi, dear devs!

Make some intresting autoivents for hurtworld, and... have a few question. Maybe anybody help me.

1. increase time between activation and explosion of c4. its possible? hooks? examples?
2. whether there is an opportunity to define that someone put any items in storage
3. Can play some sound (example "beep-beep" by c4 or custom file ) in any place, for exaple near wall/door etc...

If somebody knows - pls help council. Sorry for my lang