Pre-render function for field instance settings.
Combines the instance, widget, and other settings into a single fieldset so that elements within each group can be shown at different weights as if they all had the same parent.
function field_ui_field_edit_instance_pre_render($element) {
// Merge the widget settings into the main form.
if (isset($element['widget']['settings'])) {
foreach (element_children($element['widget']['settings']) as $key) {
$element['widget_' . $key] = $element['widget']['settings'][$key];
}
unset($element['widget']['settings']);
}
// Merge the instance settings into the main form.
if (isset($element['settings'])) {
foreach (element_children($element['settings']) as $key) {
$element['instance_' . $key] = $element['settings'][$key];
}
unset($element['settings']);
}
return $element;
}