# Landscape Material Tool Editor Mode
Accessing the Landscape Material Tool Editor Mode
The Landscape Material Tool Editor Mode can be accessed either via the Editor Modes dropdown or the SHADERSOURCE menu.
Editor Modes dropdown:
SHADERSOURCE menu (Level Editor Toolbar):
SHADERSOURCE menu (Window menu):
Landscape Material Tool Editor Mode Header Content
1. **SHADERSOURCE Modes Menu**: Finds and creates buttons to easily switch between SHADERSOURCE Editor Modes.
2. **Documentation button**: Opens the tool's documentation page in your default browser.
3. **Store Page button**: Opens the tool's Fab store page in your default browser.
4. **Version number**: Show's the tool's current version number so that it can be compared to the latest version.
5. **Open Texture Tools button**: If the [*SHADERSOURCE: Texture Tools*](/assets-and-plugins/texture-tools.md) plugin is installed, this button will open the Texture Tools window. If it is not installed, it will open the *SHADERSOURCE: Texture Tools* Fab store page in your default browser.
Selected Landscape
1. When ticked, the Landscape Material Tool will automatically load the Material data from a Landscape or Landscape Streaming Proxy when it is selected in the Viewport.
2. Manually select a Landscape or Landscape Streaming Proxy to load the Material data into the Landscape Material Tool.
3. Pick a Landscape or Landscape Streaming Proxy in the viewport to load the Material data into the Landscape Material Tool.
4. If a Landscape Streaming Proxy is selected, instead select the parent Landscape actor and load its Material data into the Landscape Material Tool.
5. Reload the current level (with a prompt to save changes).
Master Material
1. Load a Material's data into the Landscape Material Tool.\*
2. Load the Material currently selected in the C*ontent Browser* into the Landscape Material Tool.
3. Browse to the currently-selected Material in the *Content Browser*.
4. Create a new Landscape Material using the Landscape Material Tool's default Material.
5. Open the currently-selected Material in the Material Editor.
6. Save and compile the currently-selected Material.
7. Expand or collapse the Master Material selection box.
\*When a Material is selected, the box has four states:
* Invalid Material: This Material is not compatible with the Landscape Material Tool.
* Compile to Update!: This Material has been created in a past version of the Landscape Material Tool; compiling the Material through the Landscape Material Tool will automatically update it.
* Valid Material: This Material has been created in this version of the Landscape Material Tool and no further action is needed.
* Convertible Material: The Landscape Material Tool has detected that this Material is a Landscape Material that has *not* been made by the Landscape Material Tool but may be able to be converted into a Valid Material.
UI
The rest of the Landscape Material Tool is split into three tabs:
* [**Material**](/assets-and-plugins/landscape-material-tool/how-to-use-5.4+/landscape-material-tool-editor-mode/material-tab.md): Edit parameters in the selected Material OR convert the selected Material into a Landscape Material Tool-compatible Material.
* [**Instance**](/assets-and-plugins/landscape-material-tool/how-to-use-5.4+/landscape-material-tool-editor-mode/instance-tab.md): Edit the parameters of a Material Instance of a Landscape Material Tool-compatible Material.
* [**Layer**](/assets-and-plugins/landscape-material-tool/how-to-use-5.4+/landscape-material-tool-editor-mode/layer-tab.md): Edit a Landscape Material Tool-compatible Landscape Layer.
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