OK Looked in main FSX menu

Ok Im looking in main menu FSX ,it has sounds ,Textures , effects etc. etc. When I download a plane that has all this in it , do I have to separately copy and paste every one of the attributes from that file into each and everyone of these ?? According to the directions I was given at simviation . Download File with plane in it / Extract it / Open 2 windows /
in the left one downloaded folder / in the right airplanes folder which has
Model, Panel, Texture, Sound , im not familiar with installing everything into each and every attribute. 😞