Before reading this article, please go through the following article:
SharePoint Permissions - Important Aspects
In this article, we can explore the Permissions toolbar items. Please note that this article is a part of an article series. The following is the Site Permissions screen accessible from the Site Actions menu.
Now let us explore each menu item.
How to Grant Permissions?
For assigning permissions to a user or group, you can use the first menu item Grant Permissions.
You can enter the user name and check the required permission levels in the dialog.
How to create a SharePoint Group?
For creating a SharePoint Group, use the second menu item named "Create Group".
Microsoft recommends using SharePoint Groups, instead of directly assigning permissions to users. You can enter the group name, description & Group Owner in the dialog.
How to Edit Permission?
For editing permission assigned, select the permission item & click the "Edit User Permissions" item.
You can check/uncheck the permission levels in the edit dialog.
How to Remove Permission?
To remove a permission assigned, select the permission item & click the "Remove User Permission" item.
How to Check Permission?
For checking the permissions assigned to a user or group, you can use the Check Permissions item.
How to create Custom Permission Levels?
For creating custom permission levels, you can use the Permission Levels item.
How to Manage Access Requests?
For automating Access Requests, the Manage Access Requests item can be used.
In the dialog, you can enable the request for access feature. Requests will be forwarded to the email specified.
How to Set Site Collection Administrators?
Multiple site collection administrators can be set through the Site Collection Administrators item.
We can add multiple site collection administrators without going to Central Administration.
References: http://bit.ly/10uiVpB
Summary
In this article, we have explored the toolbar items of Permissions.