What is the test for determining whether a defendant has multiple intents or objectives?

A trial court's imposition of concurrent sentences is treated as an implied finding that the defendant possessed multiple intents or objectives, i.e., as a conclusion Penal Code section 654 does not apply. (People v. Alford (2010) 180 Cal.App.4th 1463, 1468.) "We review the trial court's determination in the light most favorable to the respondent and presume the existence of every fact the trial court could reasonably deduce from the evidence." (People v. Jones (2002) 103 Cal.App.4th 1139, 1143.) The trial court's findings, including implied findings, will not be reversed on appeal if there is substantial evidence to support them. (Id. at pp. 1143, 1147.)