Hey Hojin,
I found a pretty easy work around to open not only folders but also programs by using your Custom Macro commands together with Windows Run. I wanted to share it with you. Here are the steps with some screen shots if you wanted to post anywhere.
1) Create a shortcut of any folder or program you want.

*Keep in mind that the name of the shortcut is the name of the Run command.
2) Move the shortcut file from your desktop to your Windows/System32 folder.

3)Create a Macro in the BootMapper.

Now when you click your CustomMacro it should open up Windows Run and run the file/exe command.