I'm not sure I follow exactly what you are trying to do (and I might not be helping much any more) but you can schedule any parameter of an object.
If it is a numeric parameter you can sum it.
If it is a text parameter then it will be just that - text.
So if your 'WC' object has a parameter for "fixture units" you can use that.
If it doesn't then you can get into the GDL script and add one if you know what you are doing.
If you didn't want to use the 'cost' parameter for the actual cost then you could use that for the fixture units - you can change the column title in the schedule.
Or you could use any other parameter so long as it is numeric.
I don't use the same object you do so I can't comment on what parameters it has.
The custom text parameters that you can add from the 'general' section of parameters in the schedule settings are just text fields and can't be summed.
The attached image shows how you add an additional parameter to a schedule if you don't already know.
Remember this is a different object so I added the 'waste position' just as an example.
Barry.
One of the forum moderators.
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