ShotGrid Notifications, Open in App, and Toolkit Folder Creation

I am struggling to setup the following configurations in ShotGrid:

1 - I want certain people to be notified when a task is changed to a particular status
2 - On shotgrid create, when I hover over “open in” button on a task, it just says loading and doesn’t show the apps I can open the task in like After Effects, Nuke, etc
3 - I don’t know how to install the
toolkit folder creation that creates the folder structure when you begin a project

I really appreciate your help