File management in Repetier

Okay so I am an old fuddy duddy.... several issues possible interrelated
1. Once I slice an object it always brings up the same G-code file even if I slice it again. ( I have trashed the file in the slicer list without success)
2. How do you delete an object file either from Slicer or from the Repetier file list, Mouse buttons do not have normal function in the file drop down? ( do you have to delete the whole file from the load list and re-download it from the web again?)
3. How do you clear the 3-D graphics display once you stop a print in mid process, it keeps coming back the same each time I try to start a new print.

I don't find any directory or info on how to at the Repetier site.