Multilple row selection

Author: addice@yahoo.com (addice)

What I'm asking for is the implementation of the Ms Windows standard pattern for multiple rows selection in a grid:

User should be able to select more than one row on a grid widget :

1) Mouse or keyboard arrow selection :  $curocc (that's supported)

2) Mouse + CRTL : select discontinous rows

3) Mouse or arrow + SHIFT : select rows by  continous range

A function ($selectedOccurrences ?) should provide a simple $curocc indexed list: (1;2;4;5;6)

We are using a checkbox to do this, but that is really tedious for both developer and users...