I have written about Treespec before. Hit the backslash, type in a path, hit return and you are taken straight to that directory even if it is on another disc. I pointed out that a very useful way to use this command is through its History - hit the up-arrow key and select from the last dozen or so treespecs used. Mark has now discovered that typing ^` (that is Ctrl-`, where ` is the opening single quote character, on the key to the left of the 1 on my keyboard) takes you straight to the last Treespec selection. Thereafter ^` toggles between the two last entries in the History. Very handy.
Tom Ruben