Graphics display change from 4X3 to 16X9
Ideally you need to edit the graphics, change the size and re arrange the elements. but if you are looking for quick (compromised) solution you can try changing the "Presentation mode" in the PG2 graphics editor. No migration tool or one shot solution is avalable that can change this in all graphics with single click.
Below is an extract on how you can do it.
For PG2 displays there is no solution today to distribute the elements - I asked Supportline and got this answer.
If you have VB Graphic Display you can distribute the objects, before converting to PG2.
The possibility exists as the VB source code is put on OperateITTemp/ActiveGraphics when Edit.
I have developed a tool for that ( the tool can also handle change of display elements as we wanted to change from one AC800 Control Library to another)