> For the complete documentation index, see [llms.txt](https://rabbit-6.gitbook.io/ankinbt-wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://rabbit-6.gitbook.io/ankinbt-wiki/english-en_us/user-guide/advanced-mode.md).

# Advanced Mode

Advanced Mode provides a full NBT tree editor.

It lets you view and edit all data components on an item.

Internally, it serializes the whole `ItemStack` via `ItemStack.CODEC` into a `CompoundTag`.

On save, it deserializes it back.

## Layout

* **Left sidebar**: item info panel (item ID, stack count, component count)
* **Right panel**: NBT tree view
* **Top bar**: title, mode toggle (Easy/Advanced), search bar, action buttons
* **Bottom status bar**: status messages

## Tree view

The NBT tree shows all components in a hierarchy:

* **Compound** `{}`: named children (curly braces)
* **List** `[]`: ordered children (square brackets)
* **Primitive tags**: Byte, Short, Int, Long, Float, Double, String
* **Array tags**: ByteArray, IntArray, LongArray

Each tag type uses a different **color**:

| Tag type                      | Color         |
| ----------------------------- | ------------- |
| Compound                      | White         |
| List                          | Light blue    |
| String                        | Green         |
| Numbers (Byte/Short/Int/Long) | Gold / Yellow |
| Decimals (Float/Double)       | Orange        |
| Arrays                        | Cyan          |

## Navigate the tree

| Action                 | How                                         |
| ---------------------- | ------------------------------------------- |
| **Select a node**      | Click it                                    |
| **Up/down navigation** | Arrow keys (Up/Down)                        |
| **Expand/collapse**    | Double-click, press `E`, or click the arrow |
| **Expand all**         | Top bar: "Expand all"                       |
| **Collapse all**       | Top bar: "Collapse all"                     |

## Edit values

{% stepper %}
{% step %}

### Select a node

Select a tag node in the tree.
{% endstep %}

{% step %}

### Open the editor

Double-click or press `Enter` to edit its value.
{% endstep %}

{% step %}

### Validation rules

Input is validated based on tag type:

* **String**: any text
* **Byte**: integer -128 to 127
* **Short**: integer -32768 to 32767
* **Int**: integer -2,147,483,648 to 2,147,483,647
* **Long**: integer -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
* **Float/Double**: decimals
  {% endstep %}

{% step %}

### Apply or cancel

* Press `Enter` or click **Confirm** to apply.
* Press `Esc` to cancel.
  {% endstep %}
  {% endstepper %}

## Create new tags

{% stepper %}
{% step %}

### Pick the target container

Select a **Compound** or **List** node.
{% endstep %}

{% step %}

### Open the create menu

Click **"+ New"** in the top bar.
{% endstep %}

{% step %}

### Choose the type

Pick a tag type from the dropdown.
{% endstep %}

{% step %}

### Enter name and value

Enter the tag name (required for Compound children) and the value.
{% endstep %}

{% step %}

### Done

Confirm to add the new tag.
{% endstep %}
{% endstepper %}

{% hint style="info" %}
Supported types: Byte, Short, Int, Long, Float, Double, String, ByteArray, IntArray, LongArray, List, Compound.
{% endhint %}

## Delete tags

{% stepper %}
{% step %}

### Select the tag

Select the tag you want to delete.
{% endstep %}

{% step %}

### Delete

Press `Delete` or click the delete button.
{% endstep %}

{% step %}

### Result

The tag and all of its children (if any) will be removed.
{% endstep %}
{% endstepper %}

## Search / filter

{% stepper %}
{% step %}

### Start searching

Click the search icon, or type in the search bar.
{% endstep %}

{% step %}

### Filter results

The tree filters to matching nodes.
{% endstep %}

{% step %}

### Matching scope

Search matches:

* **Keys**: tag names
* **Values**: tag values
* **Types**: tag type names
  {% endstep %}

{% step %}

### Restore full tree

Clear the search to show everything again.
{% endstep %}
{% endstepper %}

## Sidebar info

The left sidebar shows:

* **Item icon** (rendered)
* **Item ID** (for example `minecraft:diamond_sword`)
* **Stack count** (for example `x1`)
* **Component count** (total)

## Saving and tools

* Press `Ctrl+S` to save to the item (Creative only).
* Advanced Mode also provides **Export** and **Import** for NBT files.
* Use **Copy NBT** to copy the full tree as text.

## Tips

* If you mess up, just close without saving.

  The original item stays unchanged.
* The tree is collapsed by default.

  Set `treeExpandedByDefault: true` to auto-expand.
* Switch back to Easy Mode anytime for common edits.


---

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