Some features provided by Dired Extra:
dired-x.el binds some functions to keys in Dired Mode (see Key Index) and also binds C-x C-j and C-x 4 C-j globally to
dired-jump (see Miscellaneous Commands). Optionally, it
also binds C-x C-f and C-x 4 C-f to
respectively (see Find File At Point).