Which shortcut key enables users to switch from Add to Cut mode?

The Spacebar is the shortcut key that enables users to switch between Add and Cut modes in Solid Edge. This function is particularly useful during the modeling process, where users often need to alternate between adding material to a sketch or model and removing material. The Spacebar acts as a toggle, streamlining the workflow by allowing quick changes without needing to navigate through menus or toolbars. This efficiency is essential for enhancing productivity, especially in complex designs where multiple modifications are required.

Other keys like Ctrl, Shift, or Alt serve different functions within Solid Edge and do not provide the same Toggle Add/Cut functionality, which illustrates the importance of proper key assignments in design software to facilitate smooth operations.