Which grid-related feature helps in visually organizing elements on a Stage?

The feature that helps in visually organizing elements on a Stage is "Snap to guides." This function allows objects to align themselves with guidelines, which can be set up by the user within the workspace. By snapping to these guides, designers can ensure precise placement and consistent spacing of elements throughout their project, which enhances the overall organization and coherence of the visual layout.

Guides can be particularly useful in complex designs where multiple elements need careful alignment or when aiming for specific compositions. This feature effectively streamlines the workflow, allowing for faster adjustments and alignment of objects without the need for constant measurements.

In contrast, the other options provide alignment functionalities but serve different purposes. For example, "Snap to pixels" relates to aligning elements to the pixel grid, which is less about organization and more about ensuring visual sharpness, especially in web projects. "Snap to layers" pertains to managing the order and visibility of layers rather than the physical arrangement of elements on the stage. "Snap to frames" typically allows objects to align with keyframes in animations, focusing on timing rather than spatial organization. Hence, while all these features play important roles in Adobe Animate, "Snap to guides" is specifically tailored for visually organizing the elements on the stage more effectively.