I have a Samsung Galaxy Wave ii GT-S1770 se ttings for direct download to SD Card

Everything I can find on that device, which doesn't run on Android BTW (and this is an Android forum) says it cannot be done on your OS, which is Bada OS v1.2. Unless you using a device running an Android version (which would need to be at least "Marshmallow" do do what you have asked on) we are unable to assist you.
 
MERGED QUESTION
Question from Zain_11 : "Samsung GALAXY XCover 2 GT-S7710"

SETINGS TO DOWNLOAD DIRECT TO EXTERNAL MEMORY CARD