Ability to do some operations on multiple issues

Sometimes it would be handy to be able to do an operation on multiple issues.

The operations I am thinking of are : assign, comment, move, link, watch.

One way I can think of is :
If the issue navigator would have a leftmost column with a checkbox to allow selection. Also buttons to select and deselect all.

The operations mentionned above would be listed below 'Save current filter'.