Mirror Tool
From Synfig Studio :: Documentation
![Tool mirror.png](https://wiki.synfig.org/images/thumb/3/35/Tool_mirror.png/64px-Tool_mirror.png)
The Mirror Tool will mirror all the selected ducks about a horizontal or vertical axis passing through the mouse cursor.
For example, to mirror a bline horizontally:
- select the Mirror Tool, either by clicking in the toolbox or hitting AltM
- check "Horizontal" in the Tool Options Panel
- select the Bline Layer
- select all ducks in the bline by hitting ControlA
- drag one of the selected ducks a little
As soon as you start dragging, the ducks will all flip about a vertical axis passing through the duck you're dragging. You will be able to drag the ducks around, but the motion will be constrained to only move left and right.