Copying Between Drawings
The Selection tool button, 
, allows a group of Nodes and Pipes to be copied, as described in the previous section. It is possible to use the group copy and the paste feature to transfer a group of Nodes and Pipes from one drawing to another drawing.
Nodes and Pipes on the current drawing are selected and copied.
A new grid is then chosen or a different drawing is opened.
The Paste button, 
, can be used to place the copied Nodes and Pipes on to the new drawing