System Configuration : Preferences : Editing Preferences : Clips Section

Clips Section
Clip List Selection Follows Edit Selection
When selected, selecting a clip in a track also selects it in the Clip List.
Edit Selection Follows Clip List Selection
When selected, selecting a clip in the Clip List causes Pro Tools to highlight that clip’s occurrence in a track.
Auto-Name Separated Clips
When selected, Pro Tools automatically names newly separated clips by appending a number to the clip’s name.
“Separate Clip” Operates On All Related Takes
When selected, editing a clip with the Separate Clip command also affects all other related takes (recording passes) with the same User Time Stamp. This option helps you compare different sections from a group of related takes.
Clip Gain Nudge Value
This setting specifies the amount (from 0.1 dB to 6.0 dB) by which clip gain settings are adjusted when nudging clip gain.