You're looking for a method to configure your aircraft livery-specific and your add-on does not support it yet ?
This LUA plugin might make you stop searching any further.
The script is looking for a config file ( acfconfig.ini) inside the selected livery folder and will set the DataRefs defined inside.
Lines starting with a "#" are ignored and can be used for comments
Lines containing a "," are interpreted as "Dataref","Value"
FlyWithLua and an aircraft which can be configured by DataRefs
Put the acfconfig.lua script into the Scripts folder and restart FlyWithLua
Put a "acfconfig.ini" into the livery folder and use it to set the desired datarefs for your aircraft
In the ZIP file you will also find example config files
acfconfig works with XP11 and XP12
Delete the acfconfig.lua script from your FlyWithLua/Scripts folder and restart FlyWIthLua
The current "Windows" version of FlyWithLua has some problems dealing with DataRefs of type "Data". So the above script might not work properly for you.
Under the "fwl" folder you will also find fixed FWL plugins ( win and mac ). I have been working with @sparker on that and future versions of FlyWithLua might also contain that fix.