# Features

Feature tabs show up only when **both** providers support that feature.

Most users enable **one feature at a time**.

### Quick start

* Start **one-way**.
* Enable **one** feature.
* Run **dry run** first.

Related: [Configure Pairs](/crosswatch/configure-pairs.md).

{% hint style="info" %}
Watchlist is the safest first feature.

History is the riskiest.
{% endhint %}

{% hint style="warning" %}
Two-way adds risk across every feature.

Conflicts, duplicates, overwrites, and propagated deletes become more likely when both sides can write.
{% endhint %}

### Pick a feature

<table data-view="cards"><thead><tr><th>Feature</th><th data-card-target data-type="content-ref">Open</th></tr></thead><tbody><tr><td><strong>Watchlist</strong><br>Sync “plan to watch” items.</td><td><a href="/spaces/3rh5THg1PdhVsBt3GALo/pages/KNnBRgpRsxjPp2egBawm">/spaces/3rh5THg1PdhVsBt3GALo/pages/KNnBRgpRsxjPp2egBawm</a></td></tr><tr><td><strong>Ratings</strong><br>Sync rating values (and timestamps when available).</td><td><a href="/spaces/3rh5THg1PdhVsBt3GALo/pages/g1Zud9UhBjNypsiziVe0">/spaces/3rh5THg1PdhVsBt3GALo/pages/g1Zud9UhBjNypsiziVe0</a></td></tr><tr><td><strong>History</strong><br>Sync watched/completed state.</td><td><a href="/spaces/3rh5THg1PdhVsBt3GALo/pages/7m19m7dZVqYr1WaT3OjB">/spaces/3rh5THg1PdhVsBt3GALo/pages/7m19m7dZVqYr1WaT3OjB</a></td></tr><tr><td><strong>Progress</strong><br>Sync resume position (“Continue Watching”) between media servers.</td><td><a href="/spaces/3rh5THg1PdhVsBt3GALo/pages/n575tse3rRGlm0zePIAq">/spaces/3rh5THg1PdhVsBt3GALo/pages/n575tse3rRGlm0zePIAq</a></td></tr></tbody></table>

### Recommended patterns

#### Watchlist

Good for one-way or two-way.

Start one-way anyway.

#### Ratings

Prefer one-way.

Two-way tends to create noise.

#### History

Best as a **one-time seed**.

Then disable History in the pair.

Use scrobbling for new plays.

Related: [Watcher](/crosswatch/scrobble/watcher.md).


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