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The `ue-docs` MCP server isn't connected in this session, so I'll answer from general UE knowledge (and these are stable, well-established editor features).

Yes — that graph is a classic "spaghetti material," and the Material Editor has several built-in tools to tame it. Here's what actually helps, roughly in order of impact:

## 1. Comment boxes (biggest win)
Select a cluster of related nodes and press **`C`**. This wraps them in a labeled, colored box you can title (e.g. "Base Color Blend", "World-Aligned UVs", "Normal Setup"). You can drag the whole group by its title bar, and recolor it in the Details panel. Do this first — group your texture samples + their logic into labeled regions.

## 2. Named Reroute nodes (kills the long crossing wires)
This is the single best fix for that tangle of cables crossing the middle. Instead of dragging a wire all the way across the graph:
- Right-click → **Add Named Reroute Declaration Node**, give it a name (e.g. `GrassAlbedo`).
- Anywhere else, right-click → **Add Named Reroute Usage Node** and

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• mcp__ue-docs__search_docs organize clean up Material Graph editor comment nodes reroute alignment 22.8s 8.0 KB

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Good news — the MCP reconnected, and Epic has a dedicated doc page for exactly this: **"Organizing a Material Graph."** Your screenshot is a textbook case of what it's meant to fix (long wires crossing the middle, scattered texture samples). Here are the five built-in tools, in order of impact for your graph:

## 1. Comment boxes
Select a cluster of related nodes and press **`C`** to wrap them in a labeled, colored box. Title each region (e.g. "Base Color", "World-Aligned UVs", "Normal Setup") and drag the whole group by its title bar. Do this first to carve your graph into readable zones.

You can also add a per-node comment: hover a node → click the **Toggle Comment Bubble** icon → type. Pin it to stay readable when zoomed out. (That text also shows in the node's **Desc** field in Details.)

## 2. Named Reroutes — the fix for your crossing wires
This is the biggest win for that tangle through the center. A Named Reroute is "like a tunnel/portal from one region to another" — it removes the wire entirely without changing data flow.
- Right-click → **Add Named Reroute Declaration Node**, name it (e.g. `RoughnessMap`).
- Anywhere else, right-click → it appears at the **top of the menu** as a Usage node, or grab it from the Palette. Drop as many usages as you need (duplicate with **Ctrl+D**).
- To navigate: right-click a Declaration → **Select Named Reroute Usages**; right-click a Usage → **Select Named Reroute Declaration**.

## 3. Reroute nodes (plain)
**Double-click anywhere on a wire** to drop a reroute, then drag it to route the wire around nodes that are in the way. Also handy to split one output cleanly into multiple inputs.

## 4. Align & Distribute
Select 2+ nodes → right-click → **Alignment** submenu → Align Left/Top/etc., plus **Distribute Horizontally/Vertically** for even spacing. Quick way to straighten out a row of texture samples.

## 5. Collapse Nodes
Select a working sub-network → right-click → **Collapse Nodes** to fold it into a single collapsed node, hiding the internal complexity. (If you'll reuse the logic across materials, promote it to a **Material Function** instead.)

## Bonus: Find Results
**Window → Find Results** searches node descriptions, texture names, param names, and comments. You can target node types with `Name=` (e.g. `Name=Texture` finds all Texture Samples) and jump straight to them instead of hunting through the graph.

A practical order for your terrain material: **Named Reroutes** to kill the center spaghetti → **Comment boxes** to label each texture layer's logic → **Align/Distribute** to tidy each box → optionally **Material Functions** for the repeated world-position/UV setup you've got duplicated top and bottom.

## Sources
- [Organizing a Material Graph in Unreal Engine](https://dev.epicgames.com/documentation/unreal-engine/organizing-a-material-graph-in-unreal-engine?lang=en-US) — Commenting, Reroute Nodes, Named Reroutes, Align and Distribute, Collapse Nodes
- [Unreal Engine Material Editor User Guide](https://dev.epicgames.com/documentation/unreal-engine/unreal-engine-material-editor-user-guide?lang=en-US) — Find Results search