customize columns in single panel view

[Karel]

Hello,

Is it possible to customize the columns in the single panel view ?

For my default (two panel) view, I have customized it using:

 -> Listing Mode
   (*) User defined:
      half type name | size:15 | mtime

however, when I switch to the single panel view, there are different
columns (obviously):

  Permission   Nl   Owner   Group   Size   Modify time   Name

For instance, I need to change the width of "Size" to 15.

thanks,
Karel