Rhomobile How To Edit The Android Manifest

I am having difficulty changing the AndroidManifest.xml file. 'C:\RhoStudio\ruby\lib\ruby\gems\1.8\gems\rhodes-3.2.2\platform\android\Rhodes\AndroidManifest.xml' I am trying to add

Solution 1:

android:
  capabilities:
    - sdcard

Adding the following to the build.yml adds the above the AndroidManifest.xml and allows me to read/write to the SDcard.