Multiple selection shall be possible for a range of rows for SelectionMember mode

When selection checkboxes for grid rows in SelectionMember mode are active, it is possible to check or uncheck all of them between two rows of interrest.

The feature works as follows:

  1. Click at the first selection checkbox. The selection will toggle for the rows from this row, inclusive. If you just checked the box, you will check all the rows in the range as well. If you just unchecked te box, you will uncheck all of them in the range similarily.
  2. Now find the second row, press and hold Shift and click the selection checkbox of the row, which causes the checkboxes in the range to check or uncheck. While you hold the key, preview of the selection will be displayed as you hover over the checkboxes.