The illustration below is the pattern stamp tool's options bar. To choose a brush size and type, click on the little down arrow to the right of the brush thumbnail. A pop-up palette of available brushes will appear. For more information on brushes, please see the Brushes page . The box titled Mode , and showing Normal is a drop down menu of all the blend modes that can be used when applying, or stamping the copied image.
Opacity determines the transparency, if any, of the stamped pattern.
You can set this with a slider, accessed by clicking the little arrow to the right of the percentage value. Clicking on the little down arrow next to the blue pattern thumbnail on the options bar will open the preset patterns pop-up palette , shown in the second row, below , on the left. Any patterns that you create will also appear in this palette. Beside the palette is its options menu, found by clicking on the little arrow in the top right corner of the patterns palette. There is another patterns palette that you can try, Patterns2, listed at the bottom of that menu.