andyexeter

Post Lockdown protects your site-critical pages and posts by disabling all non-admin users’ ability to trash or delete them. 
It can also lock pages and posts, which will disable editing of the post as well as disabling trashing/deleting.
The plugin adds a new options page under the Settings menu in your WordPress admin panel which allows you to quickly search and 
select for all pages and posts of any post type. When you find the item you want to select, simply click it to move it to the right 
box and click Save Changes.
See the screenshots for an example of what an Editor would see when they view a list of posts with some locked and protected.

Post Lockdown

Works very well, my only criticism is that private posts/pages should be lockable, ie private posts should appear in the search form.

In order to lock them currently you need to publish them, then lock/portect, and then make it private again

Update!! the developer added the minor feuature request/bug. This plugin is now perfect!

Now perfect

I think the plugin is really useful, otherwise I wouldn't have made it ;)

Great Plugin

Allows admins to protect selected posts and pages so they cannot be trashed or deleted by non-admin users.

Ratul Hasan

Custom Role Creator plugin allows you to add or change user roles and capabilities easily. You can add new role or edit existing role. You can add capabilities to a role or change a roles’ capability. 
Just turn on check boxes of capabilities you wish to add to the selected role and click “Save Capabilities” button to save your changes. Add new role and customize its’ capabilities according to your needs. You can add role from scratch or as a copy of other existing role. 
An unnecessary role can be deleted. If there is no use for this role, you can delete that role. That’s it. 
Currently supports: 
– Create new role. 
– Edit role. 
– Create new role as a copy existing role capabilities. 
– Assign capabilities to a role. 
– Delete unnecessary role. 
– Assign capabilities to individual users’. 
– Reset Custom Role Creator Made Roles To Default. 
– Restore roles and capabilities to default as WordPress Core.
The plugin is an open source project. If anyone has new ideas – pull requests are welcome! 
The development repo is <a href="https://github.com/RatulHasan/custom-role-creator" rel="nofollow ugc">GitHub Repo</a>.
<h3>Privacy Policy</h3>
Custom Role Creator (CRC) uses <a href="https://appsero.com" rel="nofollow ugc">Appsero</a> SDK to collect some telemetry data upon user’s confirmation. This helps us to troubleshoot problems faster & make product improvements.
Appsero SDK does not gather any data by default. The SDK only starts gathering basic telemetry data when a user allows it via the admin notice. We collect the data to ensure a great user experience for all our users.
Integrating Appsero SDK DOES NOT IMMEDIATELY start gathering data, without confirmation from users in any case.
Learn more about how <a href="https://appsero.com/privacy-policy/" rel="nofollow ugc">Appsero collects and uses this data</a>.

Custom Role Creator (CRC)

Custom Role Creator plugin allows you to add or change user roles and capabilities easily.

Post Lockdown vs Custom Role Creator (CRC)