If you have installed Poodll Anywhere for TinyMCE but it is not showing, first check that it is enabled at:
site admin -> plugins -> text editors -> tinymce -> general settings.
It used to be necessary to add the icon names to the editor toolbar text area further down the page. But these days it seems unnecessary. Howecer it is not showing, then checking this is a good idea.
Finally, some text areas in Moodle do not accept file uploads. In that case Poodll Anywhere just hides itself. So test on a text area that accepts uploads. If you are usuare if this is the case, then see if it is possible to upload an image into the same text area. If it is not possible to do this, then it is also not possible to record into this text area.