Left / right buttons on research and manufacture screens to cycle through bases.

[Yglorba]

Often you'll want to review what all your bases are doing.  It'd be very useful to have left / right buttons on the research and manufacture screens to cycle through your bases quickly; there's even a bunch of unused space on the top on either side where the buttons could go.

A few other screens could also benefit from this (craft setup, sales, purchases) but research and manufacturing are the most important.