“What? The singleton pattern is gone in FDT3 actionscript 3?” No it’s not! You just have to alter a bit of code to get it to work. FDT didn’t include this template in their version 3. I got the pattern from “Actionscript 3 with Design Patterns“. Here’s the template code to have the CTRL-space-singleton action back again 
Open FDT preferences, goto templates, then add a new one for AS3 and copy paste the code below (click continue reading)