There's one problem that I often face in LO Impress. Suppose I create an item (level 1) and then a sub-item (level 2) as follows:

* Item (level 1)
  - Sub Item (level 2)

Then suppose I'd like to change the bullet used in level 2, so I select only the text "Sub Item", right click and go to "Bullets and Numbering".

Actual result:
The dialog opens with "Level 1" selected on the left pane.

Expected result:
The dialog opens with "Level 2" selected on the left pane.

This is needed because often the user may forget that they're not editing the level that is selected. Then whichever changes they make won't get applied to the selected level because "Level 1" is selected in the dialog instead of "Level 2".

So I propose that when the dialog opens, it should consider current selection and if the selection only contains items belonging to one single level (in this example, only level 2) then the corresponding level is automatically selected in the dialog.