[galaxy-user] Rename tool output file in Galaxy

Hi group, The galaxy stores the output of the job on files/043/dataset_*ID*.dat. I have two questions here.: 1) Can I find the ID of my output from the Galaxy history? I tried Edit Attributes, Annotations, tags but couldn't find it. 2) Can I rename my output while initiating the task? If I can how can I do this and what are the consequences. Thank you. Regards, Sachit