Hi, it seems to me that for the new ui-maker functionality (see the function package guide) spaces are not supported. So one has to write the string for the 'depends' field as "x==0" instead of "x == 0". I think the latter should also be supported, just strip out whitespace in the code. Furthermore, using the FALSE alias also isn't recognized, apparently. I'd like to write "x == FALSE" for better readability, since for some time now this is valid syntax in gretl. Of course, it's not a showstopper since right now "x==0" works and can be used. thanks sven