Metdb help for: Complex options

I expect that there will be two types of user of the metdb form system. The "simple" user will wish to see data for a station or date, with the mimimum of fuss. The "advanced" user will want to select data ranges, ordering options, etc. The "complex options" checkbox is intended to enable entries for these complex options. If it is not checked (the default), a rather simpler form is displayed which should help to avoid confusion for the novice.