I would find it very helpful to have an Editor Command that would format the selected text in a columnar or "table"
format, by expanding/contracting the whitespace between non-white-space.

Example:
  filePath = "/";
  open = false;
  empty = true;

Would change to:
  filePath = "/";
  open     = false;
  empty    = true;



Also, the ability to automatically do this for multi-line parameter lists would be really great.

For example:
  public void test( String testName,
                   int testNumber,
                   Map<Integer,TestResults> results )

Would change to:
  public void test( String                   testName,
                    int                      testNumber,
                    Map<Integer,TestResults> results )
                    


I know quite a few people who arrange their code in columns, ESPECIALLY in multi-line parameter lists, etc.
It really makes code a lot easier to read and to maintain.