Xcode -- default to add new files to all targets

When I add a new file in Xcode, I get a dialog开发者_高级运维 box asking me which targets I want to add the file to. By default, this dialog has just one target selected. I'd like to select all targets by default. Is this possible?

Xcode remembers the selection you make in the dialog, so when you select all targets once, it should have them all selected by default when you add files the next time.