I noticed you asking about BOXER.  As a registered user of BOXER ...

JB>
  > Can you configure the syntax coloring based on the fileextension?
JB>

  Yes.  BOXER comes supplied with syntax colouring for batch files,
  C/C++, TELIX, PAL, dBASE ...

JB>
  > Does that mean you can mark (highlight) a rectangular block
  > on screen and then cut/paste/whatever it?
JB>

  BOXER supports marking by line, character, or column.  Blocks can be
  cut and pasted as your would expect.  They can also be case-converted,
  sorted, entabbed and detabbed, stripped of trailing spaces ...

JB>
  > How hard/easy is it to change default keymappings and syntax colors?
JB>

  Changing keymappings, macros, printer drivers, and screen colour sets
  is simply a matter of copying the correct colour file over the top of
  DEFAULT.KEY, DEFAULT.MAC, DEFAULT.PP, and DEFAULT.CLR.

  There are also finer grained reconfiguration utilities.

  Syntax colouring is as easy as editing a text file.  Since BOXER is a
  text editor ...

  I could go on, but I suggest that you download the shareware
  try-before-you-buy distribution of BOXER 6.00 and give it a go.

  > JdeBP -- Registered user of BOXER 6.00 and QEdit 3.00 for OS/2 <
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