I need this pretty often, I could not find it anywhere on here so, for the next person that wishes to: 1. import 3 lists 2. export all possible combinations of the 3 lists I made a simple little UI, you will need to write in your variables or import from text files then just hit run. Enjoy. comment ("gpv - ui") ui block text("var 1",#var_01) ui open file("",#var_01) ui block text("var 2",#var_02) ui open file("",#var_02) ui block text("var 3",#var_03) ui open file("",#var_03) ui block text("output",#output) ui button("run") { input_to_list() loop_process() } comment ("gpv - cre