is that possible? to make a layout for a gallery?
: Yup, that's possible (see my gallery here). However, after you've put the code in the description box the code gets changed to semi-gibberish: All the special characters like the brackets get transformed into their code representation (those © signs and such). So if you do make a layout for your gallery, you should keep a copy on your computer to paste back into it in case you want to change it.