Where can I find this command?
The Snap command toggles grid snap mode.
When Grid Snap is on, the marker "snaps" between grid snap points, whose distance apart is set by the SnapSize command or in Document Properties > Grid.
當物件鎖點作用時或以座標輸入時，格點鎖定會暫時失去作用。當角度或距離限制作用時，格點鎖定仍可以部分作用。
請參考
工具列