I want to use Avicsync and primo on my phone. But i don't want to have the content twice. So for Primo this is working in sys.txt:

has_secondary_root=1
android_secondary_root_path="/storage/emulated/0/addons"

But it's not working for Avicsync:
There is al little bit more. played with them without luck...

[device]

type="android"
;device_nng_path_secondary_disable=1
;data="/storage/emulated/0/addons"
;has_secondary_root=1
;android_secondary_root_path="/storage/emulated/0/addons"

Any help? :-)
THX