Thanks all. This took a lot longer to update then I hoped, but it's been updated today on the vault.
http://nwvault.ign.c....Detail&id=8028
There is a ton of information in the read_me that's not on the vault page itself, so I do suggest anyone using these files read that. In many hours of testing, I've discovered a lot of screen drawing idiosyncrasies, that are dependent on the players actions, and you might want to be aware of before using these placeables.
I'm very pleased with how everything turned out - but am not sure I'd want to tackle something like this again. Though I confess, there are still two concepts really gnawing at me.
1. Invisible dock tiles (well, all the ship parts removed from tiles, just the water and underwater remain) with the visible tile woks, using invisible placeable blockers placed or unplaced depending on ship location, with placeable doors for player boarding and entering a ship interior after arrival. I had this almost working, then after about the 20'th or so test, the mod crashed. Crashed and would not even open in the toolset. Since then, I think this was an unrelated issue, but all that was backed out for this update. Maybe down-the-road?
Oh, the placeable gangplanks made for this concept are in this update. These gangplanks are matches for the tile group the ship is matched to, and would appear where the tile gangplank was in the visible version of the tile group, after the ship had docked. There's also some functions in the ship include script related to this concept - now commented out.
2. Forest tops group placeables, animated to move below the floating airship tile group. This may not be practical at all, due to possible file size, but it might be worth a try anyway - to see. Perhaps with correct fog setting to minimize the detail needed below ... this really interests me.
Kalbaern, your point is well taken about the travel speeds and I've tried to address that with speed variants of most models. I've discovered the slower you make these things go - the bigger the file becomes - fast!