one of the ways to fix this window bound error is to switch over the coordinates that you are using (for i think what is the clickitem operation). you can access the operation parameters by giving a single click within the value column of that operation, and then you can switch the x y coordinates of the click by replacing it with -1 for both x and y. (although i dont think there are coordinates involved in the clickitem action). Perhaps addtional operations are needed, such as a click operation on the top level parent of that dropdown, or even a hover mouse action to display the items.