Modifying Bubble Shapes
As of version 1.7.0, GMAO is able to draw "Control Points" which let
you directly modify the shapes of existing bubbles. To enable or
disable drawing of control points, use the "GMAO-<Draw Control
Points" menu item. There are two types of control points: green
movement points, and red polygon points. You can drag (left mouse
button) the green movement point for any shape to move the shape. If
the green movement point is not actually inside the boundary of the
bubble, you will have to move it using the "Move" button on the
toolbar.
Red control points for polygons can be dragged to re-shape the
polygon. For a polygon only, you can add a new point by
right-clicking on the boundary of the polygon and choosing the
appropriate menu item. Points can be deleted by right clicking on
them and choosing the appropriate menu item.
Rectangular shapes can be resized by moving the mouse near the
boundary and dragging. Ellipses only resize well on the four main
walls, diagonals probably don't work well due to the way I coded
that. I'll try to fix it soon though.