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The idea behind the Autogen Configuration Merger tool is to make it easier to modify the autogen configuration files. FSX and P3D use one set of global configuration files for this, which means that all developers must modify the same files.
This often leads to problems when people replace the existing configuration files when a new addon is installed or when the merging is not done correctly. Attempts to ease this situation by released combined configuration file containing the definitions for different addons might sound helpfull, but that makes updating specific configurations of an addon later on much harder.
Therefore this tool aims to assist in the process of merging the files. Each addon can just put it's custom autogen configuration files locally with the addon (those configuration files only need to contain the definitions of the scenery, no need to include the default ones or those of other addons). Then before starting FS the Autogen Configuration Merger tool will scan over all active addon sceneries and make sure those local configurations are merged into the global ones.
By checking this when FS starts and not only at install time of the scenery, it can also be ensured that your addon keeps working, even after somebody else messed up the global files. Your custom definitions are just added back in.
This often leads to problems when people replace the existing configuration files when a new addon is installed or when the merging is not done correctly. Attempts to ease this situation by released combined configuration file containing the definitions for different addons might sound helpfull, but that makes updating specific configurations of an addon later on much harder.
Therefore this tool aims to assist in the process of merging the files. Each addon can just put it's custom autogen configuration files locally with the addon (those configuration files only need to contain the definitions of the scenery, no need to include the default ones or those of other addons). Then before starting FS the Autogen Configuration Merger tool will scan over all active addon sceneries and make sure those local configurations are merged into the global ones.
By checking this when FS starts and not only at install time of the scenery, it can also be ensured that your addon keeps working, even after somebody else messed up the global files. Your custom definitions are just added back in.