why many .bfb palette files are not in BFD2?

i have a lot .bfb grooves or palettes files into E:\program files\FXpansion\BFD2\Grooves\
and there are not in the "load palette" menu from bdf2!
to have them i have to manually "load from file" it...
do i have to save all them ? make no sense ! wow .. its like 1000 files to save lol :(