> For the complete documentation index, see [llms.txt](https://docs.alemba.com/asm-legacy-product-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.alemba.com/asm-legacy-product-documentation/setup-and-configure-asm/setting-up-your-system/system-administration-settings/nano.md).

# Nano

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### BEFORE YOU START

You must have **Nano Setup** enabled in your General Access Security Roles – Admin Tab
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1. Select the Menu button ![](https://alemba.help/help/10.0/content/resources/images/menu%20button.png), then **Admin**, and then select **System Administration**. The System Administration window is displayed. In the Explorer pane, locate the **Nano** group, scrolling down if necessary. 
2. Select **Nano Settings** to open the window.
3. Select the options that you require for Nano

<table data-header-hidden><thead><tr><th width="196"></th><th></th></tr></thead><tbody><tr><td>The options under <strong>User Experience</strong> affect system behavior for analysts using Nano. </td><td></td></tr><tr><td>On Save</td><td>Use this setting to control what happens when the Save button is pressed in a Call, Task, or Request. </td></tr><tr><td>Keep open</td><td>Select to keep the window open after the call, request, or task is saved.</td></tr><tr><td>Close window</td><td>Select to close the window after the call, request, or task is saved.</td></tr><tr><td>The options under <strong>Theme</strong> affect the Nano page header.</td><td></td></tr><tr><td>Default Theme</td><td>Select to use the default Nano theme, which has a dark background. This option is selected by default.</td></tr><tr><td>Custom Theme</td><td><p>Select to use the custom Nano theme, which has a light background.</p><p>The <strong>Custom Theme</strong> has been developed to be customizable by anyone with skill in CSS. To customize, navigate to the system's <strong>Content</strong> folder, then edit <strong>custom-header.css</strong>; e.g.: C:\Program Files\Alemba\ASM\&#x3C;System>\Content\custom-header.css</p></td></tr></tbody></table>

| Keep open    | Select to keep the window open after the call, request, or task is saved. |
| ------------ | ------------------------------------------------------------------------- |
| Close window | Select to close the window after the call, request, or task is saved.     |

1. Select  ![](https://alemba.help/help/10.0/content/resources/images/save%20and%20close%20button.png) to save the changes and close the window. Provide the change reasons if prompted to do so.