MLNewPacket() intMLNewPacket(MLINKlink) skips to the end of the current packet on link. MLNewPacket() works even if the head of the current top-level expression is not a standard packet type. MLNewPacket() does nothing if you are already at the end of a packet. See the Mathematica book: Section 2.12.13, Section 2.12.14. See also: MLNextPacketMLNextPacketMainBookLinkOldButtonDataMLNextPacket.