Hi, We have our own local instance of Galaxy from the 15.03.2 release. I have developed a tool that works perfectly well normally but cannot get it integrated into a workflow as we would like. My tool's input form has 3 select menus that use a .loc file (using “from_file” in the options tag) to dynamically load the select options depending on the selected option in the previous field . The problem we see in the workflows happens in the following manner: For the choice of input1 (A or B), there should be a subsequent menu with options for input2 (1,2,3 or 4,5,6 respectively). The select menu input1 is automatically populated with A as this is the first option in the file, and thus the second menu is automatically populated with 1, 2, and 3. However, when you try to select B as input1 the following message is shown: An invalid option was selected for input2, u’1, please verify. The select menu for input1 is then immediately reverted back to A. I can never select B. Is there a way to get the dynamically loaded select menus to work in workflows? Many thanks. Joanna