Layer Reveal

Intermediate

When you're building something tall — a multi-storey house, a tower, a cliff face — upper floors can obscure the layers beneath them and make it hard to see and edit what's below. The Layer list and Blueprint Reveal slider are tools for managing exactly this: they let you understand your build level by level and work on individual floors without visual obstruction.

The Layer List

The Layer list is a panel in the sidebar that shows every level of your build from top to bottom, each labelled by number (Level 1 at the bottom, Level 2 above that, and so on). Next to each level number is a live count of how many blocks are on that level.

Its primary purpose is to give you a quick overview of how blocks are distributed across your build's height, which is useful for:

Spotting which floors have the most blocks (and therefore the most work ahead if you need to modify them).
Identifying empty levels — if a level shows 0 blocks, you may have forgotten to build something there.
Getting a sense of total build density at a glance before exporting a Layer Sheet or resource list.

Layer Action Buttons

Each row in the layer list has five inline action buttons that let you manipulate whole layers at once without touching individual blocks:

Button	What it does
C	Copies the entire contents of this layer to a clipboard buffer. The copy persists until you copy a different layer or close the app.
P	Pastes the previously copied layer into this one, replacing all its current blocks with the copied contents. A layer must have been copied first — the button does nothing if the clipboard is empty.
↑	Swaps this layer's contents with the layer directly above it. Disabled when this is the topmost layer.
↓	Swaps this layer's contents with the layer directly below it. Disabled when this is the bottom layer.
✕	Clears all blocks on this layer. A confirmation prompt appears first to prevent accidental clearing.

All five operations are fully undoable with Ctrl+Z (or Cmd+Z on Mac). The swap arrows are useful for reordering floors in a multi-storey build without manually moving individual blocks; copy and paste let you duplicate an entire floor to another level in one action.

Tip: To move a floor upward by several levels, use ↑ repeatedly — each press swaps it one level at a time. All of the intermediate swaps are recorded as a single undoable sequence.

The Blueprint Reveal Slider

The Reveal slider sits at the top of the Layers & Blueprint Reveal section, above the layer list, so it's always accessible without scrolling. It controls how many levels are visible at once, counting upward from the floor. Drag it left to reveal fewer levels (hiding upper floors from view); drag it right to reveal more (up to the full height of your build).

At its minimum, only Level 1 is shown. At its maximum, every level is visible. As you drag, the viewport updates in real time — upper floors hide or reappear instantly.

Tip: Set Reveal to show just the level you're currently working on, then use the Current Layer indicator in the viewport to confirm you're editing the right floor. This combination effectively isolates a single storey for focused editing.

More Than Just Hiding

The Reveal slider doesn't just control what you can see — it controls what you can edit. Any level above the current Reveal limit is completely locked: you cannot place, paint, erase, move, rotate, copy, or paste anything on a hidden level. Every tool treats those levels as if they don't exist.

This is intentional — if you can't see a level, you probably don't want to accidentally modify it. It also means you can use Reveal as a deliberate edit lock: reveal only the levels you're actively working on, and every tool interaction above that is safely blocked.

X and Z Reveal

In addition to the Blueprint (height) Reveal slider, two further sliders let you slice into the build from its edges: Reveal width (X) trims from the X-axis edges inward, and Reveal length (Z) trims from the Z-axis edges inward. Dragging either slider inward hides a band of columns from that side, exposing a cross-section of your build without moving the camera.

The three sliders — height, X, and Z — work independently. You can reveal a full cross-section from the side while still hiding upper floors, or cut in from the Z edge while showing everything vertically. Any combination is valid.

Like the height Reveal slider, columns hidden by X or Z Reveal are locked to all tools — you can't accidentally edit anything outside the revealed window. Raising a slider back restores both visibility and editability instantly, and the hidden blocks are completely preserved throughout.

The X and Z Reveal state saves with the build file: if you export your build and share or reload it, the sliders come back exactly where you left them.

Tip: X and Z Reveal are particularly useful for inspecting interior rooms in a closed building — slice in from two sides at once to see the floor plan of a specific storey without demolishing any walls.

Limitations

A few things to be aware of:

The slider range matches your grid's Height. If your grid is 5 levels tall, the slider goes from 1 to 5. Growing your grid's Height raises the maximum automatically.
Reveal is all-or-nothing per level. You can't allow placing on a level while blocking erasing, or allow the Cursor tool but not Build. Hidden levels are fully locked to every tool at once.
Hidden blocks are not deleted. Lowering the Reveal slider hides levels and locks them, but the blocks on those levels are completely preserved. Raise the slider back up and they reappear exactly as they were.

Blueprint workflow: The Reveal slider takes its name from a common use pattern — lowering it to "reveal" a build floor by floor, like unrolling a blueprint. If you export your build and share it with someone, they can drag the slider up gradually to explore each floor in sequence.

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