pro tzoom,names,trange=trange tplot,new=ts1,/help if n_elements(trange) ne 2 then ctime,trange tplot,names,trange=trange,old=ts1,wi=ts1.options.window+1,new=ts2 ;tlimit,old=ts1,wi=ts1.options.window+1,new=ts2 tplot,old=ts1,/help end