MDT - Showing More Windows PE Features

In Microsoft Deployment Toolkit (MDT) if you need to add additional features to your boot images, you'll go to your Deployment Share Properties and than you open Windows PE tab and select Features.

Here you'll find all features that Windows PE boot image has available and add/remove them.
For some strange reason there are some missing features here and therefore you aren't able to select them.

Like almost anything in MDT, the list of viewable features are controlled using an XML file,
Now, to show more features that you can add to your Windows PE boot images, follow these steps (assuming you've installed MDT on default install location):

• Close MDT
• Navigate to "C:\Program Files\Microsoft Deployment Toolkit\Bin\FeatureNames.XML"
• Here, you'll find some features with an additional parameter (option="exclude")
  
• Remove the option="exclude" tag
• Save file and launch MDT
• The "Windows RE Configuration" will now appear on Windows PE features

Note:

This is particularly important if you need to use Windows Powershell feature because some of it dependencies like WMI it's not present on this list by default.