# Canvas **Canvas** is the arrangement area in ACE Studio. Here, you can create, place, move, and edit all contents as clips along the timeline to create your music works. ## Marker-line & Timeline The Marker-line is a static vertical line that flashes between white and blue, indicating the starting point for playback or the precise position for editing actions, such as pasting. You can click anywhere on the Time Ruler or on the grid to reposition the Marker-line. When a selection exists on the canvas, the marker-line is always positioned at the left boundary of the selection. The Timeline is a moving vertical line that indicates the current playback position and only appears when playback begins. * Press the Space to start playback from the Marker-line's position. * Press Shift + Space to resume playback from the last paused position. ## Time Ruler The Time Ruler is located at the top of the Canvas, displaying time in a musical format (bars and beats). It serves several key functions: * **Time Display:** Shows the project's timeline in bars and beats. * **Navigation and zooming:** * Drag horizontally on the Time Ruler to scroll the view. * Drag vertically on the Time Ruler to zoom the view. ## Grid & Snap The Canvas features a background grid that represents musical time divisions, helping you align clips precisely. Editing actions (like moving or trimming clips) will automatically snap to these grid lines by default. Right-click on the blank area of the Canvas to open the Grid & Snap menu. * Auto-Narrow: Automatically adjusts the grid size to narrow spacing based on the zoom level of the Canvas. * Auto-Medium(default): Automatically adjusts the grid size to medium spacing based on the zoom level of the Canvas. * Auto-Wide: Automatically adjusts the grid size to wide spacing based on the zoom level of the Canvas. * 1-16 Cell/Beat: Divides each beat into 1-16 grid cell. * Snap off: Disables snapping to the grid. Allows free placement of clips without alignment to the timeline. You can also bypass it by holding down the Ctrl/ ⌘Command while editing. ## Navigating & Zooming * **Horizontal/Vertical Scrolling:** Use your mouse wheel to scroll vertically. Hold Shift while using the mouse wheel to scroll horizontally. * **Zooming:** Hold Ctrl/ ⌘Command and use the mouse wheel to zoom in and out horizontally. * **Hand Tool:** Hold down the middle mouse button and drag to pan the view in any direction. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.acestudio.ai/project/arrangement-in-canvas/canvas.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.