If you install the final release of FDT4 the location of the FDT folder, which included the project types & project templates on Mac OS X has changed.
In the past it was located in your main Users folder:

[box] /Users/{yourusersname}/FDT[/box]

Now it has changed to

[box] /Users/{yourusersname}/Library/Application Support/FDT[/box]

you will see this folder structure

So as an example if you want to change your output folder from bin to deploy in your Empty AS 3 project, you would use this new location

[box] /{yourusersname}/Library/Application Support/FDT/projectTemplates/Web/EmptyAS3/description.xml[/box]

Mine reads like so

<?xml version="1.0" encoding="UTF-8"?>
<tns:projectTemplate xmlns:tns="http://fdt.powerflasher.com/ProjectTemplate"
	xsi:schemaLocation="http://fdt.powerflasher.com/ProjectTemplate ../../projectTemplate.xsd">

<name>Empty AS3 Project</name>
	<description>This template contains only the basic libraries to develop and compile a pure AS3 project.</description>
	<projectType>AS 3</projectType>

By |2010-09-27T01:47:06+00:00September 27th, 2010|