Since the 1.9 update, this mod has been included in the stock game so that it can be loaded on mobile as well as PC. To use it, you should just be able to open the Mods section on the home screen, and enable it.
Overload - In-game XML modding
It's here! XML mod from inside the editor!
It's fairly easy to use, to edit part properties select the modified on the dropdown at the top then simply modify the values and press the tick. You can add extra values, such as
disableBaseMesh on a rotator by clicking the plus.
Report any bugs here.
If you have the game on steam, I recommend you download via the Steam Workshop link. That way, you'll get updates as soon as they come out.
For all people wanting to know different XML options and how to use them, take a look at this