I can map the # key to do ^Xe 'manually' when running vile simply by going to the colon prompt and entering 'map ', then entering # in response to 'change this string' and, finally ^Xe in response to 'to this new string'. The # key then opens the file under the cursor for editing.
However I can't seem to get the same result by entering the map command in my .vilerc file. What do I need in .vilerc to get # to 'edit file under cursor'? -- Chris Green