plugin mygallery: commands for displaying gallery

how are the commands to include the mygallery’s general view? with [mygal=galleryname] it worked for 4 galleries, but as i added this command a fifth time in the page-page called “gallery” in my blog and now the page-page “gallery” is completely empty! so i read, that i could display all galleries with one single command instead of writing a new command in the page-page every time i create a new gallery.
the “eye”-button isn’t available in my blog’s (fck and standard) editor.