Adding pictures to the gallery is done one picture at a time. The procedure is listed below.

1) Click GALLERY at the top of the page on the NAV bar.

2) Click Upload Photo's on the far upper right (Next to Profile)

3) Select your photo's to upload from your computer with the grey BROWSE button (looks like one at a time)

4) Fill in your default title

5) Fill in you description

6) change an default/options if you like

7) Click upload/submit and wait for it to upload (and wait if the picture is big).

If you want to upload another, go back to step 1)