multiple select in powerpoint 08

I was wondering how to select multiple items (words, characters, etc.) that are not next to each other in PP08. I could do this in Word08 by holding the Command key while selecting multiple items. However, this same technique does not seem to work in PowerPoint. Was this an oversight, or is there another key sequence to accomplish this? BTW, I know this feature does exit in PP07 (for Windows).<br>
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Thanks much in advance.