That's what am looking for then. Um.... should I save the module and keep it open while going to that folder?
And after that, to replace the file, the other person must do pretty much the same thing? Replace the module.jrl that is under temp when they open it, save and reopen the module for it to have effect?
Yes.
One thing, though - when you change a file in temp directly, the toolset doesn't know anything has changed. So, to be sure, make a trivial change in the toolset, reverse it and save. For example, you might add one letter to a description, then delete it.