<?php
$entity_guid = elgg_extract('entity_guid', $vars);
$entity = get_entity($entity_guid);

echo elgg_view_field([
    '#type' => 'text',
    '#label' => elgg_echo('google_meet:link'),
    'name' => 'google_meet_link',
    'value' => $entity ? $entity->google_meet_link : '', // Pre-fill if exists
]);

echo elgg_view_field([
    '#type' => 'hidden',
    'name' => 'guid',
    'value' => $entity_guid,
]);

echo elgg_view_field([
    '#type' => 'submit',
    'value' => elgg_echo('save'),
]);