Altium Designer的原理图输入和PCB编辑培训（板级实现培训指南）

The help text loads automatically into the upper region of the Knowledge Center panel if the Autoupdate button is enabled, indicated by the outline around the button. By enabling the Autoupdate feature of the help system, the upper section of the Knowledge Center panel will update to display content sensitive help while you work. If it is not enabled you can force the context to load by pressing F1.