You should find the full user manual in @Documentation, as well as the Tome if you own it. All the files in @Tutorial should belong to one of the pdf's in @Documentation. Remember, even the quick start guides and essentials can have support files, they are mostly similar to the annual documentation, with a quick walkthrough of the program/add-on and making a sample map with it. The files in @Examples are just pure examples for you to look at, with no accompanying documentation.

For a Schley-based tutorial, I guess the first map tutorial in the manual would be the place to go. (And/Or the one in the Tome)

The mention of Dune and your maps make me think back to the original Dune II computer game. It set the standards for the future of the RTS genre, and provided me lots of fun in my younger days. Fond memories.

Looks like your effect is set up to "Percent of View Width" instead of map units or percent of drawing extents width. Go in and edit the effect in question, and change this section. Do note that you may need to tweak the size of the effect after doing this, as you basically change the baseline for the sizing.

You'll need to change the width of the previews. Click the options button above the catalog and set the desired width.

FT3+ uses a new data directory, similar to CC3+, instead of keeping files in the installation directory, so you'll need to copy it to there if you want easy access. Strictly speaking, the terraformer material doesn't really integrate with FT, it just provides a bunch of files FT can use, so it can live mostly anywhere, but inside the new data directory (c:\program data\ProFantasy\FT3) is the best place to keep them for easy access.