> For the complete documentation index, see [llms.txt](https://support.charlla.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.charlla.io/en/userguide/library/oepn_sidebar/tap_dis.md).
# Displayer tab
## Change the video title
1. In \[Library] > \[Videos tab], click the video you want to edit.
2. When the \[Sidebar] opens, go to \[Displayer tab] > \[Video Title] and enter the title you want.
3. Click **\[Save and Update]**. The new title appears in the video list.
## Change the player settings
1. Go to \[Sidebar] > \[Displayer tab] > \[Player Settings] and turn the toggles on or off to apply the settings you want.
2. After you change the Displayer settings, click **\[Save and Update]**. The player updates automatically on every page that uses this video's URL.
{% hint style="danger" %} **If you change the Auto Fit setting, you need to replace the player code or link.**\ **\[Sidebar] > \[Save and Update] > \[Link] button > \[Copy the Displayer code or link] > \[Paste it into your web page editor]**
{% endhint %}
### Control Bar
* Control Bar on: the control bar, with the play button, volume control, and more, appears over the video.
* Control Bar off: no playback or volume controls appear over the video. Use this when viewers don't need to control the video and you want it to look as clean as an image.
### Autoplay
{% hint style="danger" %} **When Autoplay is on, the video plays muted.**
{% endhint %}
* Autoplay on: the video starts as soon as the page loads, without viewers clicking play. It plays muted.
* Autoplay off: the video plays only when viewers click the play button.
### Loop
* Loop on: when the video ends, it starts again from the beginning without stopping.
* Loop off: the video stops when it ends. Viewers need to click play to watch it again from the beginning.
### Auto Fit
{% hint style="danger" %} **If you change the Auto Fit setting, you need to replace the player link.**\ **\[Sidebar] > \[Link] button > \[Copy the Displayer code or link] > \[Paste it into your web page editor]**
{% endhint %}
### Auto Fit off
Auto Fit is off by default.
{% tabs %}
{% tab title="Resize" %}
* You can set the video size by entering a number.
* Use the **\[Video Size Preview]** button below the video on the left to see how the size you entered looks.
* If you don't enter a size, the video's original size is used.
* You can enter a width from 200px to 1920px.
Turn Auto Fit off ➡️ change the width ➡️ click Save and Update ➡️ click **\[Copy Code]** at the top, and you're ready to go.
{% endtab %}
{% tab title="Center Alignment" %}
**✅ Center Alignment checked**
* The Charlla player is automatically centered on the page.
* Your HTML editor's **text center alignment** option has no effect.
**Center Alignment unchecked**
* If you uncheck Center Alignment, the Charlla player is aligned to the left.
* You can then use your HTML editor's **text center alignment** option.
The result can vary depending on your store's theme and your commerce platform.\
Test it first, then save the setting that works best for your store.
{% endtab %}
{% endtabs %}
### Auto Fit on
Turn Auto Fit on to make the video fill a specific area.
* Use Auto Fit on when your theme or custom-built website already defines an area for the video.
* The video fits exactly to the width of that area.
* The size of the area is calculated automatically.
* You don't need to set a size in the Charlla player settings.
Turn Auto Fit on ➡️ click Save and Update ➡️ copy the code, and you're ready to go.
---
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