Edit->Remove All Displays and Data menu item
or the
icon in the toolbar to clear them out.
/data/idv/point/madis.nc.
Make sure you the Data Source type select "netCDF Point Data files"
Times tab.
Turn on the enabled button and enter 5 minutes for the Only Show Every. Press return.
Bin Size and press OK.
Spatial Subset tab.
Reload Displays and press OK.