Where is the FE_CONFIG.hm file locate at

If you click the pencil icon from the Connector Control Manager then it will let you point to the feconfig.cfg file, usually saved in your install location. It's a pretty cool text file that can be edited with custom configurations. In this context, the feconfig.cfg file is different from the control manager configuration file (which saves individual controls and their settings).

Check out the help for info on how to modify the feconfig.cfg file

https://2022.help.altair.com/2022.1/hwdesktop/hwx/topics/pre_processing/connectors/fe_configuration_file.htm?zoom_highlight=feconfig.cfg