RSPE are going to be releasing weekly tutorial videos on the Avid S6 with Gary Lux.  In the first video, Gary will be demonstrating Locking Strips, which is a feature added in software v2.2.

Locking Strips allows you to lock any strip to its current location on the surface, leaving it unaffected by nudging, banking, or spilling. This is great for scoring mixers who need quick access to the dialog track, or for tracking when you need to keep the click nearby.

Be sure to check RSPE's S6 microsite for more information on the S6 Control Surface and build your own custom S6 with the RSPE S6 Configurator.