The ‘Make neutral’ functionality helps you to switch from a specific Daikin object to a generic one.
This command can be helpfull when designing in a conceptual/generic phase where you are not allowed to specify the Daikin brand identity, but wish to already determine specific characteristics of a specific Daikin object.
You can find this command at the default Daikin tab and in the Contextual ribbon of Daikin (see article about contextual Ribbon) and has following icon.