Change extensions_additional.conf

I have a FreePBX 2.11 system and I want to edit a specific context from extensions_additional.conf.

The context is

[from-internal-noxfer-additional]
include => from-internal-noxfer-additional-custom
exten => h,1,Hangup

I want to add one step before the hangup that changes a device state.
Is there a way to change this file and make freepbx keep the changes?
Using the custom context doesn’t help because it is being parsed after the h extension.

Putty in extensions_override_freepbx.conf

[from-internal-noxfer-additional-custom]
exten => 444,1,Progress() ; Example
exten => h,1,Hangup

Putting there the dialplan I think only works for macros. I ll try and post back.

-edit-

Just tested it, only works for macros, not actual dialplan.

-2nd edit-

Ok, now I feel kinda dumb. Worked, I was pasting the custom context not the one that is inside the extension_additional.

:S