danielpataki

This plugin helps you out if you need to have the ability to select one or more user roles. Roles can be chosen with a select element (single or multiple choice), checkboxes or radio buttons. Roles can be returned as a role name or a role object.
You also have the option of specifying allowed roles. This lets you control the roles users are allowed to select.
<h4>ACF Compatibility</h4>
This ACF field type is compatible with both ACF 4 and ACF 5.
<h4>Thanks</h4>
<ul>
<li><a href="http://www.advancedcustomfields.com/" rel="nofollow ugc">Advanced Custom Fields</a> for the awesome base plugin.</li>
<li><a href="https://www.iconfinder.com/Umar" rel="nofollow ugc">Umar Irshad</a> for the field icon.</li>
</ul>

ACF: User Role Selector

This is great for creating bespoke user login areas that you can restrict by user role.



Perfect

A field for Advanced Custom Fields which allows you to select one or more user roles

Dreb Bitanghol

This field will provide you more options and flexibility on how you would like to present an instruction or message to your client’s (or site in general) admin interface.
Features:
<ul>
<li>Support PHP.</li>
<li>Option to hide label when field is displayed.</li>
</ul>
Compatible with Advanced Custom Fields:
<ul>
<li>4 (tested up to 4.4.6)</li>
<li>5 (PRO, tested up to 5.3.7)</li>
</ul>
PS: You need <a href="https://wordpress.org/plugins/advanced-custom-fields/" rel="ugc">Advanced Custom Fields</a> installed to use this.
PPS: Even more awesome if you have <a href="http://www.advancedcustomfields.com/pro/" rel="nofollow ugc">Advanced Custom Fields PRO</a> installed.
Important note: Use this with utmost care.

ACF Enhanced Message Field

Exactly what I needed

Exactly what I needed. You could improve the plugin by making the textarea field look more like an IDE, with system fonts, syntax highlights and so on.

Awesome!!

Adds an enhanced version of the default Message field to accept PHP and certainly no wpauto().

ACF: User Role Selector vs ACF Enhanced Message Field