nboehr

By default, the gallery shortcode does not allow to limit the number of images displayed. This makes sense when you for example include all images attached to a post like this:
<pre><code>[gallery id="4"]
</code></pre>
When this plugin is activated, you may use:
<pre><code>[gallery id="4" limit="3"]
</code></pre>
and it will only display three images.
You can also use an offset parameter:
<pre><code>[gallery id="4" limit="3" offset="1"]
</code></pre>
Will display at most three images, starting at the second.
Note that this plugin is a little bit of a hack.

Limit parameter for gallery shortcode

Adds a limit parameter to the [gallery] shortcode.

Condless

Limit the number of posts user can create. Any post type.
<a href="https://en.condless.com/user-posts-limit/" rel="nofollow ugc">Documentation</a> | <a href="https://en.condless.com/contact/" rel="nofollow ugc">Contact</a>
<h4>How To Use</h4>
<ol>
<li>Plugin Settings: Select role, post type, limit, and cycle.</li>
</ol>
<h4>How It Works</h4>
<ul>
<li>On post creation the number of posts from this post type belong to this user for the specified cycle will be counted and if applicable the post creation will be prevented.</li>
</ul>
<h4>Features</h4>
<ul>
<li>Post Creation Limits: Limit the number of posts each user role can create daily/weekly/monthly/yearly/ever.</li>
<li>Hide Content: In order to make some content hidden when posts limit exceeded wrap it with the shortcodes (replace "post" with the post type of the relevant rules): [upl_hide type="post"][/upl_hide]</li>
<li>Display Limits: Display the limits to the user anywhere with the [upl_limits] shortcode.</li>
<li>Users Stats: Track how many posts each user used from his quota.</li>
<li>Multisite: Network-wide rules can be applied via the Network Admin Dashboard (doesn’t support the Hide Content, Display Limits and Users Stats features).</li>
<li>Integrations: WooCommerce, Paid Memberships Pro, MyListing theme, Restrict Content Pro, PeepSo, WordPress REST API.</li>
<li>Limits per User: Set limits per user (see instructions in docs).</li>
</ul>

User Posts Limit

Отличный плагин

With a little elbow grease, the possibilities are really interesting for a multisite installation, such as limiting the total number of WooCommerce products per site (regardless of the author). The plugin is not easy to learn, not very intuitive and would surely deserve to be more explicit on certain settings, however, it does the job and the author is responsive and attentive… so I recommend it 👍 

Possibilities are really interesting for a multisite installation

Limit the number of posts user can create. Any post type.

Limit parameter for gallery shortcode vs User Posts Limit