Once you have imported an audio file or recorded live, the date and time of the recording will appear in the tagging fields at the top right of the Project tab.
You can add a Title, Topic and Speaker to your file; just click on the tags to edit. To see options used before (history) click on the down arrow to the right of each box. The Title field is used as the default file name when you save the file, although you can edit this. You can delete the history in App menu → System → Settings → History.
The time and date are automatically filled, but can be changed.
When complete click on the 'tick' to save the changes.