In previous SONARs, there were little indicators S, P, and N that displayed when Scroll Lock, Pause, and/or Num Lock were pressed.  I've looked around in Platinum, but I couldn't find similar indicators.  The indicators were helpful in diagnosing problems (like choppy playback because the Pause key was on).
 
Here's a screenshot from 8.5.3, that shows the SPN indicators, when all three keys were on:
 

There is no status bar anymore but a control bar module with the letters vertically aligned would be about as wide as a collapsed module.

Bounce, erm bump even.
Just implement this the way everyone else does. It's a GoodThing(tm), people will use it if it's available, a lot.
 
 
 
 
 
 
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And the way everyone else does is..?

The "good old status bar" is hidden in SONAR X & newer but with a little tweaking you can show it:

Status Bar in SONAR X3e
 
There is a small black area in the right end of the status bar but otherwise it's working just as in SONAR 8.5.
 
To show statusbar in Duckbar: click the rightmost icon shown in the image above ("44.1").
You can also send yourself these commands to SONAR by using the Windows API:
SetWindowLongPtr(SonarHandles.StatusBar, WindowLongFlags.GWL_STYLE, New IntPtr(&H5400014E))
SetWindowLongPtr(SonarHandles.StatusBar, WindowLongFlags.GWL_EXSTYLE, New IntPtr(0))
SetWindowPos(SonarHandles.StatusBar, tmp, 0, 0, Screen.PrimaryScreen.Bounds.Width, 19, CType(SetWindowPosFlags.DrawFrame + SetWindowPosFlags.ShowWindow, SetWindowPosFlags))
ShowWindow(SonarHandles.StatusBar, WindowShowStyle.Show)