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.

Looking nice. I love the look of your cave, and also where it breaks into the dungeon.