Updates for pA and new flags:

Updates for pA and new flags:

  Info("DrawdNdeta", "Usage: DrawdNdeta(FILE,TITLE,REBIN,OTHERS,FLAGS)\n\n"
       "  const char* FILE   File name to open (\"forward_root\")\n"
       "  const char* TITLE  Title to put on plot (\"\")\n"
       "  UShort_t    REBIN  Rebinning factor (1)\n"
       "  UShort_t    OTHERS Other data to draw - more below (0x7)\n"
       "  UShort_t    FLAGS  Visualisation flags - more below (0x7)\n\n"
       " OTHERS is a bit mask of\n\n"
       "  0x1   Show UA5 data (INEL,NSD, ppbar, 900GeV)\n"
       "  0x2   Show CMS data (NSD, pp)\n"
       "  0x4   Show published ALICE data (INEL,INEL>0,NSD, pp)\n"
       "  0x8   Show event genertor data\n\n"
       " FLAGS is a bit mask of\n\n"
       "  0x1   Show ratios of data to other data and possibly MC\n"
       "  0x2   Show left-right asymmetry\n"
       "  0x4   Show systematic error band\n"
       "  0x8   Show individual ring results (INEL only)\n"
       "  0x10  Cut edges when rebinning\n"
       "  0x20  Remove FMDxO points\n"
       "  0x40  Do not make our own canvas\n"
       "  0x80  Force use of MB\n"
       "  0x100 Mirror data\n");

that means, if the centrality axis is present in the input, but
you want to use the MB data only, pass 0x80 in the options.  If
you do not want to mirror the data, do not set the bit 0x100 in
the flags.