EViews.com

this works

group _nfp_group previous_dnfp d(u::lanagra) @movav(d(u::lanagra),3)
freeze(_nfp_graph) _nfp_group.mixed(llast) bar(1,2) line(3)
_nfp_graph.setelem(2) legend("")
_nfp_graph.setelem(1) legend("previous")
_nfp_graph.setelem(3) legend("3-mo MA")
_nfp_graph.addtext(l) "thousands"
_nfp_graph.addtext(font(20,+b),t,ac) "change in nonfarm payroll employment"
_nfp_graph.legend position(4.5,.5) -inbox

but how can I make the bars on the bar graph wider?

Depends on what you mean by wider, but you could change the aspect ratio of the frame.