I have been having a good old mess with this script this evening, sorry LraiZer
The only downside is that in each of the generated bouquets there are blank lines where the placeholders were placed to keep the channel numbering correct.
no need to be sorry, its was made to be poked about with and modified to suit your own needs. the main reason i didnt add placeholders to the category bouquets is because they look terrible and are also be a pain to navigate during general usage. the --UK Bouquet-- channel list placeholder bouquet containing everthing in correct position so that remote key presses are official is enough for me. the rest of the category bouquets are not ruined by any annoying spaces.
im not sure your category placeholder hack would work in the next update though. you will be able to set channels to any position you want so that it generates your current favourite bouquet set.