I know this is an older module but for some reason I am unable to make changes to it. However, on my local PC where I have a test version of 8.5 running I am able to make changes. I am trying to change the position of the buttons as well as adjust the light source effects.
If you want to make changes to a module, make sure to edit the Module.json, see How to upload a modified version of a module/system for more information.
You can upload it through the Import wizard, make sure to not install it from the Bazaar. Happy modding