Move Transformer Tool

If you need to move a transformer, right-click on the map to access the click wheel, on which you see the Move tool.

When you move a transformer:

Along a line it is already connected to, the conductor components have their length changed to match the new transformer location, but nothing else changes.
Onto an existing connectivity node (end of line), the transformer leaves behind a connectivity node, but replaces the node at the end of the line.
That is on the end of the line and moves to a connectivity node, the transformer moves from the end of the line to the connectivity node and replaces the node.
That is on the end of the line and moves onto a different conductor, the connectivity node is left behind. At the new location the conductor is split into two new conductors, both connected to the moved transformer.

When you move a transformer (and attached secondary cables are involved):

With attached secondary conductors onto a three phase line, users are prompted to choose a phase, and the secondary conductors inherit this phase.
Off of any conductors, the secondary conductors are now de-energized, and after a brief delay, the symbology is updated to show this.

When you move a de-energized conductor back onto a line, the transformer and its attached secondary conductors are again energized, and the symbology is updated to show this.