This provides a way to load an XML or MSFS Bgl files into ADE to test integrity etc.  It loads without a project  so saving and building are disabled.  At the moment this is done on a blanket basis so you may see a request to save or click build but nothing will happen.  It is possible to edit what you see but that cannot be saved so treat this as read only.  It can be useful to look at third party xml or bgl and also check that the results of your work after compile mirrors the source.  To access use Tools > Open Files (Read Only).  You will see this dialog




Enter the Ident  (1) of the airport that you are planning to open the file for  ADE will fill in the name if you hit enter when you finish the ident or leave the ident field  Then click the small button (2)  This will open a file dialog





Make sure that the file contains the airport that you set the ident for.  Click OK (3)



ADE sets a message indicating that the file loaded is read only



Please do not use this function with bgl files other than MSFS.  Doing so will cause a CTD.



Note that the save and build menus appear active but have no effect in this mode.  Also you may see Save messages which again have no effect.  If this function appears useful in production then these issues will be addressed