There are three tabs, one for each session. To activate them you need to click the check/tick at the top, then go to that specific sessions tab. This is so that you can select different weather options for different sessions, among other things. If you do not check/tick the top, that session is skipped, so the tab is also shown blank.
hi Tim, maybe a bit related... can you help me here? http://isiforums.net/f/showthread.php/2015-how-to-make-weather-dynamic-in-practice
