This is erhe editor, July 2025:

Viewport windows show contents of 3D scene. The windows also have tool bar at the top and hotbar at the bottom.

When hovering over a mesh with brush placement attachment, and when brush tool is selected as primary tool:

• Press Z to rotate hovered mesh clockwise
• Press X to rotate hovered mesh counter-clockwise
• Press C to hide brush preview (to focus on rotate)

When hovering over Viewport window, a hotbar is shown near the bottom of the viewport window. Hotbar shows a palette of tools. One of the tools is highlighted as primary tool.

The currently active primary tool affects what commands can be triggered with keyboard and mouse.

• You can select the primary tool by clicking on an icon in the hotbar.
• if your mouse has 5 buttons, the extra buttons can be use to cycle through tools

Tools from left to right

• Transform move tool
• Transform rotate tool
• Transform scale tool
• Brush tool
• Material paint tool
• (Vertex) Paint Tool
• Physics tool
• Selection tool

At the top of the Viewport window there is a toolbar with buttons and combo boxes to control the Viewport window.

Controls from left to right:

• Button with three dots: Opens Viewport config window, to adjust viewport settings
• Toggle button for prioritizing selection over other tools. When toggled on, clicking typically selects hovered mesh
• Button with L - Transform tool operates in local space
• Button with W - Transform tool operates in world space
• Toggle button to show/hide Move handles in transform tool
• Toggle button to show/hide Rotate handles in transform tool
• Toggle button to show/hide Scale handles in transform tool
• A combo box for selecting which scene to show in the viewport ("Default scene")
• A combo box for selecting which camera to use in the viewport ("Camera A")
• A combo box for selecting default / override shader for the viewport ("Circular Brushed Metal")

• You reorder nodes by dragging
• Dragging node on top of another node will parent the dragged node to the hovered node

• You can drag brushes from content library to Viewport
• You can drag materials from content library to meshes in Viewport window or nodes in Scene Hierarchy window