Hi Doug
I have read all there is to read (including that link) regarding using the report API function.
My issue is that i read things all over the internet about being able to use the API the same as you would build a report, but this doesn't appear to be the case for what i need :(
I don't really want to go down the road of introducing another field (as i already have extra fields to record the timestamps that i want to calculate the difference of). It wouldn't be so bad if i just wanted to perform a mathematical function, but in my case i need to use the Workfront schedule to make this calculation.
Thanks for the reply!