Invisible Parts?

[Android18]

I do not know if this question has been asked, but if it has, sorry.

I need to know how to do the transparency on a preset. It's needed badly, as it goes majorly with a preset i am working on.

[Ingredient]

Here's a tutorial

https://www.feral-heart.com/index.php?option=com_jfusion&Itemid=2&jfile=index.php&topic=12075.0

The code is there too, you just need to open your presets .material file and paste the code in it. Make sure your preset is on a transparent background. Use the eraser tool to make the invisible parts.