Slide Clip Selection left/right - Premiere Pro CC Keyboard shortcut
You can use keyboard shortcuts to slide a clip in a Timeline. To slide a clip using keyboard shortcuts, select a clip (or multiple clips), and then do the following:
My Setting - (Default)
Default Setting – (Alt+,)/(Alt+.) (Alt+Shift+,)/(Alt+Shift+.) (Windows)
Default Setting – (Opt+,)/(Opt+.) (Opt+Shift+,)/(Opt+Shift+.) (Mac)