I started using blender 2.8 and I'm not being able to move a vertex on one direction like in Blender 2.7, since I can't find the little visual widget with axes (see below):
↑ the widget in Blender 2.79
Is there any way I can make this tool show, or at least a way that would let me select additional vertices in "move mode" (G) instead of needing to go in and out from the move mode for every vertex?