Snap on Pin/Pad
"Snap on Grid" is a grid based function for easier conneting signals in the schematic and tracks in the layout mode. If you come close to a connection point a box appears showing a diagonal cross. If you place a signal or a track within this square, it gets connected correctly. An acoustic signal supports the act of connecting additionally. How big the square appears depends on the grid size. For the schematic we recommend a grid of 1/40 Inch, which equals 0,635mm. In the layout sure fractions of this size are thinkable. The smaller the grid is set, the smaller the "Snap on Grid" box gets.