What is the test for establishing that a person committed multiple crimes at the same time?

considered singly or in combination, logically operate to set the . . . offenses apart from other crimes of the same general variety . . . ." ' " (People v. Felix (1993) 14 Cal.App.4th 997, 1005.) The inference of identity does not necessarily require a "signature" in the sense that certain conduct occurred only in the crimes at issue. (People v. Vines (2011) 51 Cal.4th 830, 856-857.) Rather, a fair inference can arise that the same person committed multiple crimes if "features of substantial but lesser distinctiveness . . . yield a distinctive combination when considered together." (Id. at p. 857.)