Usage: gdalmdimtranslate [--help] [--long-usage] [--help-general]
                         [-if <format>]... [-of <output_format>]
                         [-co <NAME>=<VALUE>]...
                         [[-array <array_spec>]...]
                         [-arrayoption <NAME>=<VALUE>]...
                         [[-group <group_spec>]...]
                         [-subset <subset_spec>]...
                         [-scaleaxes <scaleaxes_spec>] [-strict]
                         [-oo <NAME>=<VALUE>]... [--quiet]
                         <src_dataset> <dst_dataset>

Note: gdalmdimtranslate --long-usage for full help.