Adress Limitation in Shell

When i limit the range of allowed adress in Shell i must open the ADD Button for a new range.
Then i open the first small Box for type my Startadress, ENTER
Open second Box for the Endadress, ENTER.

Normaly i think now all is done.
But i muss press the ADD Button again for insert new empty Boxes.
After this step my range will store. if i dont create a new empty Boxesline i lost my last Adressrange.

Is it possible to change this?

EDIT:
When it is possible it will be very good to have an option for sort the allowed adress. Like in Windows the folders ala: Name, Typ, Size, Date,..
But only for listed in ascending or descending kind.
That will be very helpfull.

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