Hi all !
There is another one with "grdraw"
DuctAttach allow user to create HVAC ductwork connection.
you will see (below) that you can switch duct connecion easely.
that can be done by pressing the TAB key. You can also chose the airFlow direction by moving the cursor.
This will be added on future release of
SDUCT.
same as
TAPER and
DuctConnect.
enjoy !