Trigger,
Until Betfair do this I can think of two workarounds. I don't know whether you link to Excel (I don't) but if you do you could do a weblink in excel to sportinglife's going page, extract the going for each course for that day and translate that into, say, 1 for heavy, 2 for soft, ect etc and then use that as a variable in a trigger to adjust your strategy appropriately for the conditions.
Otherwise you could manually enter a variable once in the morning for each course and let it work from there. There are only about five each day and it wont be perfect but better than nothing ?
Alfaman