It is great to allow save the extended view. However, when the view needs large amount of re-position, it will be great to be able to lesso select a group of thoughts and move them together (maintaining their relative relation within group) so that user doesn't need to move them one by one.

Or after selection, the thoughts can be grouped so that their relation will never change until un-grouped.

Lesso select may also be implement to do the multiple selection. Current Ctrl select one-by-one is really inefficient to manipulate large number of thoughts.