Mixer Display preferences are only available when Show Advanced Tools is selected in Advanced preferences.
“Open plug-in window on insertion” checkbox: Opens the window of a plug-in automatically after it is inserted in the channel strip.
"Open in controls view” checkbox: Opens plug-in windows in controls view rather than editor view.
Show recent plug-in list in plug-in menu: Displays a list of recently used plug-ins in the audio effect and instrument plug-in menus.
Level Meters Peak Hold Time pop-up menu: Choose the length of the peak hold time. The choices are 800 milliseconds, 2 seconds, 4 seconds, or Infinite.
Level Meters Return Time pop-up menu: Set the rate at which the level meters return to zero, in decibels per second. The default value of IEC Type I (11.8dB/s) is an industry standard that is appropriate for nearly every project. However, if your source material is unusually fast or contains multiple tempo changes that require faster or slower return levels, you can choose from six additional faster or slower return times.
Very Slow (4 dB/s)
EBU Slow (6.3 dB/s)
IEC Type II/EBU Normal (8.6 dB/s)
IEC Type I (11.8 dB/s)—this is the default setting.
Fast (20 dB/s)
Faster (30 dB/s)
Very Fast (50dB/s)
Level Meters Scale pop-up menu: Switches level meters between an Exponential scale and a Sectional dB-linear scale.
Exponential: Provides higher display resolution in the upper range of the meter.
Sectional dB-linear: Provides the best possible display resolution across the entire level range.
Level Meters Channel Order pop-up menu: Determines the order of channels in multichannel (surround) level meters.