Not a problem. Bring up the View Bar (View->Show View Bar or cmd-shift-V) if it isn't already present, then select Next Actions in the Actions filter (3rd lozenge from the right). That will show you only the current Next Actions for whatever selection you have made. Note that sequential projects/action groups, parallel projects/action groups, and single action lists have somewhat different notions of the Next Action. For a sequential project it is what you would expect -- the top of the list, if it is available (context assigned, start date passed or not present). For parallel projects, the first listed of the possible actions is taken as the Next Action, on the theory that any of them could be done, but possibly you have ordered them in priority order. For single action lists, all of the available actions are styled and listed as Next Actions.
To illustrate, here are sequential, parallel, and single action projects/lists shown filtered by Remaining, Active, and Next Action:
