What type of modification does the Press Pull tool perform?

The Press Pull tool is specifically designed to modify existing geometry in a 3D model by allowing users to either pull or push the surfaces or edges of the selected geometry. This tool is especially useful for making quick adjustments to shapes, as it can seamlessly extend or reduce dimensions based on user input. By interacting directly with the geometry, it enhances workflow efficiency, making it easier to achieve desired modifications without the need for complex commands or sequences.

The other options do not accurately describe the function of the Press Pull tool. Creating new sketches pertains to the process of formulating new 2D representations for future modeling and is not related to the modification of existing 3D shapes. Duplicating features involves creating copies of already existing geometry rather than adjusting or reshaping it. Generating motion simulations is a distinct function typically associated with analyzing how parts move in relation to one another, which is outside the scope of what the Press Pull tool accomplishes.