Feature request: Copy+Paste for multiple rows and cells

Hi!

Thanks for your program. I use it every day.
Copy+Paste in table grid often helps to maintain data.
I have 2 little ideas for improving it.

1) If you copy some cells of a row and try to paste them, pasting occurs not
from column where you clicked but from the first one.
It's not well sometimes. For example: if you have first column as ID with
serial type, you wanna to insert data to the next columns.

2) Another idea is to allow copying and pasting for several rows.
If I paste to the new (inexistent) row then pgAdmin can insert some new
rows.
If I start pasting to the existent row but there is not enough rows in the
target table then PgAdmin can insert new missing rows into the table with a
data .

3) Combine 1+2 together.
I can select some cells in a rectangular block using mouse, then copy to
buffer, and paste to any table starting from place I want.

--
Yours,
Eugene Lisitsky