Make the Field blur more USEFUL

The field blur is useful, but far to difficult to use efficiently.  I would like to see it enhanced to provide

Set the blur amount to a value that is persistent so additional pins they DON'T go back to 15 px.

Enable duplicating pins so a user can create multiple pins with the same blur QUICKLY.

Enable selecting multiple pins so they can be moved or COPIED as a group.

The other filters in the blur gallery could use equivalent enhancement.