it sounds like you need to do an in-place sort of the grid rows? with a “move up” “move down” button like BAQ Editor has for the display fields? and you have a numeric “sequence” column with 1,2,3 and need to adjust the sort order depending on the button pressed?
Epicor has an out of box “Row Reorder” functionality that might be working now (was broken at the time of this post): Kinetic UI Utility - Favorite Menu Items Reorder
Other than that, I’ve never done this before, but im imagining the event would go something like store the current row num in TransView.currow, then a dataview-condition that iterates all rows and handles re-assigning the row sequence as applicable.