Scatterplot and graph displays support interactive temporary relocation of single points (nodes for graphs).
Details
Moving the points temporarily saves the new point coordinates to the
  states xTemp and yTemp. The dimension of xTemp and
  yTemp is either 0 or n. If xTemp or
  yTemp are not of length 0 then they are required to be of
  length n, and the scatterplot will display those coordinates instead
  of the coordinates in x or y.
Note that the points can also be temporally relocated using mouse and
  keyboard gestures. That is, to move a single point or node press the
  CTRL key wile dragging a the point. To move the selected points
  press down the CTRL and Shift keys while dragging one of the
  selected points.
When distributing points horizontally or vertically, their order remains
  the same. When distributing points horizontally or vertically, their order
  remains the same. For example, when you distribute the point both
  horizontally and vertically, then the resulting scatterplot will be a plot
  of the y ranks versus the x ranks. The correlation on that
  plot will be Spearman's rho. When arranging points on a grid, some of the
  spatial ordering is preserved by first determining a grid size (i.e.
  a x b where a and b are the same or close numbers) and
  then by taking the a smallest values in the y direction and
  arrange them by their x order in the first row, then repeat for the
  remaining points.
Also note the the loon inspector also has buttons for these temporary points/nodes movements.
See also
l_move_valign, l_move_halign,
  l_move_vdist, l_move_hdist,
  l_move_grid, l_move_jitter,
  l_move_reset
