How can you add custom permissions to the standard permissions tab?

Question

How can you add custom permissions in the "Site Permissions" tab just like the standard three in the image below?

Answer 1

I don't think you can customize this SharePoint default panel to add your custom groups/permission levels on it.

However, you can access all your permissions by following below steps:

1. Click on settings (gear) icon

2. Click on "Site permissions"

3. Click on "Advanced permissions settings"

   

4. It will take you to the site permissions page.

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Alternatively, you can access the site permissions & groups pages using below shortcut URLs:

1. Site permissions: <siteUrl>/wlive/_layouts/15/user.aspx
2. Site groups: <siteUrl>/wlive/_layouts/15/groups.aspx