MarcoH64 Kindly provided a fix for me and I am posting this for anyone else who requires it
Edit 'includes/functions_calendar.php'.
Find:
PHP Code:
$event['title'] = htmlspecialchars_uni($event['title']);
Add after:
PHP Code:
// Start Hack custom field on calendar month view (MarcoH64)
$customfield=unserialize($event['customfields']);
// End Hack custom field on calendar month view (MarcoH64)
Now edit the template 'calendar_monthly_event':
Find (or any other place):
Code:
<a href="calendar.php?$session[sessionurl]do=getinfo&e=$event[eventid]&day=$year-$month-$day&c=$calendarid" title="$event[preview]">$event[title]</a>
And add below (please change it to suit your needs/fieldnumbers):
Code:
<!-- Start Hack custom field on calendar month view (MarcoH64) -->
<br />$customfield[1] -
<if condition="$customfield['2'] == 'OFF'"><font color="red"><else /><font color="green"></if>
$customfield[2]
</font color></if>
<!-- EndHack custom field on calendar month view (MarcoH64) -->
Note: "OFF" is one of my custom fields drop down options, yours of course will be different
Many thanks to MarcoH64