When creating PCB part, I was able to measure pad-to-pad distance to verify my component. Although the pads are not on regular grid, the cursor would snap to pad center when clicked near by. Somehow, I lost that feature, I think I pressed some shortcut inadvertedly. How to regain it, anyone know a shortcut, option....
The snap is toggled with SHIFT+E (hold shift and hit "E"). The status will be shown in the status bar at the bottom of the screen. In the newer versions of Altium, there are three settings - Off, snap on current layer, and snap on any layer from current layer.