Things get really interesting when you start to push and pull the objects you have placed. Single click will allow you to select a single face, edge or, different than older version of FormIt, a corner or point.
Single click one of the faces of the objects.
You can immediately drag that face to push or pull it. There is no need to invoke a separate tool. You can use the snapping to snap this face aligned with other objects in the scene.
As with move, you can click the temporary dimension or use Tab key to define the amount of move.
You can also delete a face by using Delete key: Right click > X button.
Single click one of the edges of one of the cubes.
You can now drag the edge along one of the axes to redefine the shape.
You can also delete an edge by:
Pressing Delete key
Right click > X button
Single click one of the corners of one of the cubes.
Similar to an edge, you drag the point along one of the axes to redefine the shape.