Steps to reproduce the issue

with a formfield object try:

$field->renderLayout = "adifferent.layout.path"

Where the file exists in the template "addifferent/layout/path.php"

Expected result

Switch to the custom renderer

Actual result

Error logged in JLog that the property is protected

System information (as much as possible)

Joomla 3.6

Additional comments

The problem is that renderLayout isn't included in the __set function of JFormField and so the parameter isn't writable. It would be very useful to set this parameter so that I can swap renderer for a specific context. What I am trying to do is use bootstrap form-inline styling for a specific view without upsetting existing form views.

Also, the renderLabelLayout should be writable.