Process Start Permission to a specific user and Process DeadLine

I need to permit a user to decide, who is the process iniciator to a called process from his process and determinate a deadline for the process iniciator. How i can do this? In process actor definition, dont have a valor input for variables...
Im using Bonita 6.5, later i will migrate all project to 7.0~
Sorry for making two questions in one, but saves time in this way

Trigger a connector when deadline is reached


I'm trying to implement notifications for the overdue tasks in Bonita Bpm 6.5.2 Community and I would like to know if it's possible to trigger a connector when a task reaches its deadline and how can I do it, I only found related documentation on version 5.x and seems to be different now