Hello RFAWP.

You can't use this option out-of-the-box, but there's a way to do it.

You need to open this file: ../wp-content/plugins/wpdatatables/templates/admin/table-settings/table_settings_block.inc.php and around line 331 you'll see this:

<select class="form-control selectpicker" id="wdt-rows-per-page">
   <option value="1">1</option>
   <option value="5">5</option>
   <option value="10">10</option>
   <option value="25">25</option>
   <option value="50">50</option>
   <option value="100">100</option>
   <option value="-1"><?php _e('All', 'wpdatatables'); ?></option>
</select>

You can change the values "10" and "25" to "12" and "52" and you'll have that option in the "Display" tab above the table. See how I changed 25 to 30:

I hope this helps.

Best regards.

Hello again RFAWP.

I am sorry, I forgot about "Showing XX entries" which can cause a conflict. 

Like I said in the previous reply, you can add a couple of more lines of code to ../wp-content/plugins/wpdatatables/templates/admin/table-settings/table_settings_block.inc.php and around line 331, like this:

<select class="form-control selectpicker" id="wdt-rows-per-page">
   <option value="1">1</option>
   <option value="5">5</option>
   <option value="10">10</option>
   <option value="12">12</option>
   <option value="25">25</option>
   <option value="50">50</option>
   <option value="52">52</option>
   <option value="100">100</option>
   <option value="-1"><?php _e('All', 'wpdatatables'); ?></option>
</select>

This adds "12" and "52" in the Display tab above the table:

Then, open ../wp-content/plugins/wpdatatables/source/class.wpdatatable.php and around line 3092, add "12" and "52", so it looks like this:

$obj->dataTableParams->aLengthMenu = json_decode('[[1,5,10,12,25,50,52,100,-1],[1,5,10,12,25,50,52,100,"' . __('All', 'wpdatatables') . '"]]');

And the last thing to do is to go to line 488 of the same file, and modify it so it looks like this:

public function setDisplayLength($length) {
        if (!in_array($length, array(1, 5, 10, 12, 20, 25, 30, 50, 52, 100, 200, -1))) {
            return false;
        }

So, again, you only need to add "12" and "52".

This should work just fine.

Best regards.

Hello again RFAWP.

You're welcome.

When you say "arrow navigation", you mean this, right?

If this is what you want to hide, then just add this code in Custom wpDataTables CSS under the “Custom JS AND CSS” in main settings of wpDataTables:

.wpDataTablesWrapper .dataTables_paginate{display: none !important;}

This will be affected on all tables, but if you want just for specific one then insert this code on the page where is that table between the style tag (<style>Code here</style>):

<style>
.wpDataTablesWrapper .dataTables_paginate{display : none !important;}
</style>

Best regards.