The following information was in the inline help for hanningsmooth but is now being maintained in one place in the Visibility Data Selection chapter, so a link has been added to those pages. It has been deleted from the Description tab for now and included below for reference in case it's needed, once a comprehensive plan has been established for all task pages with this issue. 


    --- Data selection parameters ---
    field -- Select field using field id(s) or field name(s).
             [run listobs to obtain the list iof d's or names]
        default: ''=all fields If field string is a non-negative
           integer, it is assumed to be a field index
           otherwise, it is assumed to be a field name
           field='0~2'; field ids 0,1,2
           field='0,4,5~7'; field ids 0,4,5,6,7
           field='3C286,3C295'; fields named 3C286 and 3C295
           field = '3,4C*'; field id 3, all names starting with 4C

    spw -- Select spectral window/channels
        default: ''=all spectral windows and channels
           spw='0~2,4'; spectral windows 0,1,2,4 (all channels)
           spw='<2';  spectral windows less than 2 (i.e. 0,1)
           spw='0:5~61'; spw 0, channels 5 to 61
           spw='0,10,3:3~45'; spw 0,10 all channels, spw 3 - chans 3 to 45.
           spw='0~2:2~6'; spw 0,1,2 with channels 2 through 6 in each.
           spw = '*:3~64'  channels 3 through 64 for all sp id's
                   spw = ' :3~64' will NOT work.

               NOTE: mstransform does not support multiple channel ranges per
                     spectral window (';').

    scan -- Scan number range
        default: ''=all

    antenna -- Select data based on antenna/baseline
        default: '' (all)
            Non-negative integers are assumed to be antenna indices, and
            anything else is taken as an antenna name.

            antenna='5&6': baseline between antenna index 5 and index 6.
            antenna='VA05&VA06': baseline between VLA antenna 5 and 6.
            antenna='5&6;7&8': baselines 5-6 and 7-8
            antenna='5': all baselines with antenna 5
            antenna='5,6,10': all baselines including antennas 5, 6, or 10
            antenna='5,6,10&': all baselines with *only* antennas 5, 6, or
                                   10.  (cross-correlations only.  Use &&
                                   to include autocorrelations, and &&&
                                   to get only autocorrelations.)
            antenna='!ea03,ea12,ea17': all baselines except those that
                                       include EVLA antennas ea03, ea12, or

    correlation -- Correlation types or expression.
        default: '' (all correlations)
        example: correlation='XX,YY'

    timerange -- Select data based on time range:
        default: '' (all); examples,
           timerange = 'YYYY/MM/DD/hh:mm:ss~YYYY/MM/DD/hh:mm:ss'
           Note: if YYYY/MM/DD is missing date, timerange defaults to the
           first day in the dataset
           timerange='09:14:0~09:54:0' picks 40 min on first day
           timerange='25:00:00~27:30:00' picks 1 hr to 3 hr 30min
           on next day
           timerange='09:44:00' data within one integration of time
           timerange='>10:24:00' data after this time

    array -- (Sub)array number range
        default: ''=all

    uvrange -- Select data within uvrange (default units meters)
        default: ''=all; example:
            uvrange='0~1000klambda'; uvrange from 0-1000 kilo-lambda
            uvrange='>4klambda';uvranges greater than 4 kilo-lambda
            uvrange='0~1000km'; uvrange in kilometers

    observation -- Select by observation ID(s)
        default: ''=all

    feed -- Selection based on the feed - NOT IMPLEMENTED YET
        default: ''=all
    datacolumn -- Which data column to use for processing (case-insensitive).
        default: 'all'; whichever of the visibility data columns that are present.
        options: 'data', 'model', 'corrected', 'all','float_data', 'lag_data'.
        example1: datacolumn='data'; it will smooth the input DATA column and save the
                  smoothed data in DATA of the output MS.
        example2: datacolumn='corrected'; it will smooth the input CORRECTED_DATA column
                  and save the smoothed data in DATA of the output MS.
        example3: datacolumn='all', where the input MS has DATA,CORRECTED_DATA,MODEL_DATA.
                  It will smooth all three columns and save the smoothed data in
                  DATA, CORRECTED_DATA and MODEL_DATA of the output MS.