wildfire config.pro option documentation for: ATB_SEARCH_PATH            

atb_search_path

a single validdirectory or file path

extends the search path for check status and updatecommands.

for all atb-enabled formats, except cadds 5, set the value of the atb_search_pathconfiguration option to a single valid directory or path of the reference models or assemblies.

you can set multiple instances of this configuration option. the referenced model or assembly must be located in a path defined by an instance of the atb_search_pathconfiguration option.

the order of the setting determines the search order for the reference models or assemblies, starting from the first instance of this configuration option to the last set instance.