User-defined "favourite" zoom regions (lp:#1800870)

Original report created by John Beard (john-j-beard)

Often when designing a board, it's useful to be able to flip back and forth
between different regions of the board. For a simple example, the "PSU" and
the "MCU". Currently to do this, you need to either zoom out/press Home,
maybe flip, and then rezoom on the desired area, or use "Find" to warp to a
component you know is in the area.

It would be good if you could define a list of "favourite" regions of the
board (defined by a region of the board to fit on the screen and a flip/no
flip boolean). Then you can zoom to those areas with a set of hotkeys.

The same can apply to schematics (without the flip), though there is
already a sheet-change dialog.

This would need a file format change as you need to be able to store these
regions in the PCB file.

Original tags: feature.request pcbnew