Along with normal access to the cells in the two panes, you can also click a row with the right mouse button. This will bring up a context menu by the cursor with the following options:
Suppress (or Unsuppress if currently suppressed)
Move Up
Move Down
Insert Above
Insert Below
Delete Row
Cut Row
Copy row
Paste Row (if one has already been Cut or Copied)
These provide quick access to various actions and allow you to reorder entries if you want.
Other Parameters topics: