You can attached image when you post forum message.
1. Do you mean there is a continue beam of atom moving toward a screen with two slits?
2. Does atom move with the same speed v (or random speed),separated by the same distance(or randomly)?
3. What do you mean by "detector click or not"??? How to decide?
4. What kind of information need to be recorded/shown?
All the information need to be provided in order to create a simulation!