I have Samsung galaxy tab 10.1. I bought an SD card & an external drive. I need to put all the pictures on the External drive. Also, I want to put certain ones on the SD stick so I can get them made into pictures. I’m 66 yrs old and my tab is awesome! But, I am SO dense when it comes to tech stuff. I appreciate your help. Thanks so much! Oh, is there a certain way to put this SD card in the tab?