Ah, what Kiki gave ye is f'er the preset.material file. This file icon most likely looks like a notepad. The file is what ye edit to give certain effects to presets like transparency or scrolling. This file keeps the preset materials listed and tells FH what images to use to give ye y'er preset's look.
When transferring y'er preset to a different numbered folder, ye must change the number on the files, to keep things organized and working. Once ye rename the texture files f'er y'er preset, ye must in turn change the file names inside the preset.material or else FH won't be able to locate the images need f'er y'er preset.
Adding on to what Likuu has mentioned: To use what Kiki gave ye as coding, ye can also change the numbers in y'er coding from 11 to 6.