I am away mick so not near my home pc.. but here is a quickie on addon xml and cfg files for tongass..
Rod has you started up Mick: Yep can be done - just have to get all the pieces and of course you have to get the paths exactly correct in the addon.xml and must be in correct format and paths but not too hard to figure out and with FSX or P3D you can put stuff just about anywhere and as long as linked via cfg files, (or xml option) in P3d will work just fine.
1. First Read this on :
https://return.mistymoorings.com/getting_started/index.php#5After install (to temp Location) the folders created are:
A: Effects
B: FSAddon
Cache >> containing BGL files a sub folder with some flight files
Docs
Tongass_Fjords_Higher_Priority(This is the addon scenery Top level)
Tongass_Fjords_Lower_Priority (This is the addon scenery Base level)
C: Scenery (>> This is world scenery: equivalent to sim Layer 3 (Elevation files and AI trafic Files).
D: SimObjects >> Airplanes, Boats, Rotorcraft.
E: Sound
2). Now is a good time to do the Tongass fixes for use in P3Dv4x:
a) Add Rod Jackson AI Model fixes to Simobjects. (A requirement for P3Dv4x)
b) Add Mike Broemme new cabin smoke effects into effects folder. (Tongass cabins) (Optional)
c) Add 40 Terrain entries for Tongass into Terrain.cfg* (* C:\ProgramData\Lockheed Martin\Prepar3D v4)
3). Ok Once fixes are done, determine where you want the tongass folders placed and move them over then start defining the xml and/or :
if any will be directed by use of config files.
Without seeing your sim setup and associated folders, figure out placement of these folders: Ie: Designated drive/addon folder locationss - then move the folders to where you want them.
Define the paths and start setting it all up in xml or a combination an addon.xml and a the rest using cfg files: IE: effects path to effects.cfg, new simobjects and new sounds to simobjects.cfg and sound.cfg, scenery to scenery.cfg or all to addon.xml... Xml are a bit tricky but once you figure it out it works ok.. actually not as perfect as I want as the moving of scenery is not manipulable on defined where as moving scenery within the scenery.cfg and within the "scenery Blocks" is very manipulable.
Here is the link to P3D xml use:definition:
https://www.prepar3d.com/SDKv4/sdk/add-ons/add-on_packages.html Now if you are going the cfg route you can still keep all the Tongass pieces totally separate from the sim root or drive and as long as you correctly define locations all the pieces/paths in the cfg files- and that will work just fine.
I am drafting offline as I am on limited data but will continue....
So if you put Tongass on another drive, (In my set up, all add-ons are on a totally separate drive and all sorted by either location and/or product), folder moved to the locations then
IE:
G:\Addons\Alaska\FSADDON\Tongass\Addon Scenery\Tongass_Fjords_Higher_Priority
G:\Addons\Alaska\FSADDON\Tongass\Addon Scenery\Tongass_Fjords_Lower_Priority
G:\Addons\Alaska\FSADDON\Tongass\Effects
G:\Addons\Alaska\FSADDON\Tongass\Simobjects\Airplanes
G:\Addons\Alaska\FSADDON\Tongass\Simobjects\Boats
G:\Addons\Alaska\FSADDON\Tongass\Simobjects\Rotorcraft
G:\Addons\Alaska\FSADDON\Tongass\World Scenery
G:\Addons\Alaska\FSADDON\Tongass\Sound
And addon xml:
XML example
<SimBase.Document Type="AddOnXml" version="4,0" id="add-on">
<AddOn.Name>FSADDON Tongass Fjords X</AddOn.Name>
<AddOn.Description>Tongass Fjords X</AddOn.Description>
<AddOn.Component>
<Category>Scenery</Category>
<Path>G:\Addons\Alaska\FSADDON\Tongass\Addon Scenery\Tongass_Fjords_Lower_Priority</Path>
<Name>Tongass Lower Priority</Name>
</AddOn.Component>
<AddOn.Component>
<Category>Scenery</Category>
<Path>G:\Addons\Alaska\FSADDON\Tongass\Addon Scenery\Tongass_Fjords_Lower_Priority</Path>
<Name>Tongass Higher Priority</Name>
</AddOn.Component>
<AddOn.Component>
<Category>SimObjects Airplanes</Category>
<Path>G:\Addons\Alaska\FSADDON\Tongass\Simobjects\Airplanes</Path>
</AddOn.Component>
<AddOn.Component>
<Category>SimObjects Boats</Category>
<Path>G:\Addons\Alaska\FSADDON\Tongass\Simobjects\Boats</Path>
</AddOn.Component>
<AddOn.Component>
<Category>SimObjects Rotorcraft</Category>
<Path>G:\Addons\Alaska\FSADDON\Tongass\Simobjects\Rotorcraft</Path>
</AddOn.Component>
<AddOn.Component>
<Category>Effects</Category>
<Path>G:\Addons\Alaska\FSADDON\Tongass\Effects</Path>
</AddOn.Component>
<AddOn.Component>
<Category>Sound</Category>
<Path>G:\Addons\Alaska\FSADDON\Tongass\Sound</Path>
</AddOn.Component>
<AddOn.Component>
<Category>Scenery</Category>
<Path>world</Path>
<Name>Tongass World Scenery</Name>
<Layer>3</Layer>
</AddOn.Component>
<AddOn.Component>
<Category>Texture</Category>
<Path>texture</Path>
<Type>WORLD</Type>
</SimBase.Document>
Then you have to specify position of the scenery Tongass layers (higher and Lower) in FTX Central v3 so that Tongass lower is right below openLC. (May need to add a layer line in the xml to hold this position).
Can get a bit confusing but this gives you something to play with!