I have a large view with data. For two columns, containing related information, I'd like to collapse data so i have no blanks. An example would probably show better what I mean.

```
    ID  Title   Column1 Column2
   -11  Row1    NULL    Anna
   -11  Row1    Lars    NULL
   -10  Row2    NULL    Thomas
    -9  Row3    Paul    NULL
    -7  Row4    Gerald  NULL
    -6  Row5    NULL    Micha
    -6  Row5    NULL    Hans
    -6  Row5    NULL    Robert
    -6  Row5    Rene    NULL
    -6  Row5    Olga    NULL
    -6  Row5    Markus  NULL
    -6  Row5    Klaus   NULL
    -6  Row5    Sascha  NULL

```

And I'd like to collapse the blanks, so it looks like this:

```
    ID  Title   Column1 Column2
   -11  Row1    Lars    Anna
   -10  Row2    NULL    Thomas
    -9  Row3    Paul    NULL
    -7  Row4    Gerald  NULL
    -6  Row5    Rene    Micha
    -6  Row5    Olga    Hans
    -6  Row5    Markus  Robert
    -6  Row5    Klaus   NULL
    -6  Row5    Sascha  NULL

```

Thank you for your help!