1) Install the plugin.
2) Create any event of your choice and add the action "Convert HTML to Plain Text".

3) Add your HTML content to the input field of action created above. (HTML content can be a string or any dynamic value)

4) Use another action of this plugin called "Display Plain Text To Input Field" to insert the converted HTML into your desired Input field.

5) In the Input to Display field of the action, add results of the previous action/step and add your Input/MultilineInputs element ID to the Input ID field.

6) Done

Whenever the event you created triggers, the plugin will convert your HTML content into plain text and display it to your selected input field.