Enable this setting to snap to existing geometry while modeling.
To enable/disable snapping, click your user avatar in the top right corner and under Settings, switch the Snapping toggle.
Snapping is currently supported in the following tools: Push/Pull, Move, Copy and Slice. Once enabled, snap targets will be automatically highlighted while moving the manipulator. Possible snap targets are automatically calculated while moving the manipulator, based on several factors such as scale and geometry type, IFC class, distance to the camera and more. This allows you to easily snap to large snap targets (e.g. the surface of a wall) when zoomed out, and allows to snap to smaller targets (e.g. a door frame) when zoomed in.
Note: Snapping is still an experimental feature. Do you experience any problems or do you have feedback on how it can be improved? Reach out to our support team using the chat box on the bottom left.