The Mailbox module is a communication tool and content management for internal messaging between the authenticated users.

TL;DR:

Adds the ability to issue purge requests for specific URL paths using an admin form for defined roles.

Provides a simpler administrative experience simply by giving site administrators access to what is needed, and not more.

The Modrst is the module for conveniently restart the module on modules page in drupal, with it you can use the following features:

User Pages module allows you to manage following user related pages:-

This little module allow to show or hide one or more regions from your administration "Structure->blocks" section for user without the "administer block" permission so you can limit what regions