Yes, there is.
On the second row on the Drill Filters add the following
AND/OR = AND
Database Field = BKAR.INV.SUBTOT
Operator = >=
Value = 1000
Then click Save. Evo will save it on the C:\ISTS Folder
I can send you my "BKARINV_FORUM_QUESTION.FLT" filter
Kelloggs