# Scope of processing by feature
<a name="scope-by-feature"></a>

The SCTE 35 features that you can implement in a MediaLive channel have different scopes in terms of the output groups and outputs that they affect:

**Blackout or ad avail blanking**

Blackout applies at the *global output* level. If you enable blackout, all the relevant content in every output in every output group is blanked. 

Ad avail blanking also applies at the *global output* level. If you enable blanking, all the ad avails in every output in every output group are blanked.

![Channel diagram showing blanking or blackout applied to two output groups containing outputs.](http://docs.aws.amazon.com/medialive/latest/ug/images/scte35_scope_blanking.png)


**Decoration **

Manifest decoration applies at the *output group* level. If you enable manifest decoration in an output group, all the outputs in that output group have their manifests decorated.

![Channel diagram showing manifest decoration applied at output group level with outputs nested inside.](http://docs.aws.amazon.com/medialive/latest/ug/images/scte35_scope_manifest.png)


**SCTE 35 passthrough or removal**

SCTE 35 passthrough or removal applies at the *output* level. You can enable passthrough or removal in individual TS outputs. The messages are passed through or removed only in those outputs.

![Channel diagram showing two output groups, each containing two outputs, with passthrough or removal applied at output level.](http://docs.aws.amazon.com/medialive/latest/ug/images/scte35_scope_passthrough.png)