Variables can be copied and pasted using the Variables context menu. Multiple variables can be selected from the variable control table for copy/paste operations by pressing the Ctrl or Shift keys while clicking with the mouse.
You can also copy tab delimited cell content from other sources like excel or notepad and paste it into the Variables window.
The following right click context menu items of the Variables control are used to copy and paste.
Copy Variable(s) - The variables that have one or more of their cells selected will be copied to the clipboard.
Copy Table Cell(s) - Copies the select table cells to the clipboard in the form of tab delimited text.
Paste Variable(s) - Pastes copied variables to the model. Use after doing Copy Variable(s).
Paste Cells - Pastes tab delimited text from the clipboard to the selected cells overwriting what's there and creating new variables if needed.
Paste Cells Onto End - Creates new variables by pasting tab delimitd text from the clipboard to the end of the table.