This thread is now for tile-modding...
1. (1 more new setting added) Settings for 2-sided/doubly-sided tiles: post 9
HystericalParoxysm has offered an easier-to-understand instruction here
2. Settings for animated tiles: post 26
3. Settings for pool-tiles and pool-wallpapers: post34
4. Settings for pool-surface-tiles: post39
I'm not considering a step-by-step tutorial so far, but people are welcome to break the production barrier by making step-by-step tutorials about them without permission, but it's nice to inform me of your nice tutorial(s).
Also, for those HCP product beginning modders,
reading the following threads will help you advance in HCP-product modding.