In case its useful to anyone - I got fed up with not having a ctrl-tab alternative in pharo (I find I frequently like to jump back to the last window/browser I was looking at - and used to love the Mirage utility which is sadly not broken and rather complicated to fix) - so I added a tiny little utility - PharoFlipper. It's not fancy, just does an LRU flip to previous windows via ctrl-1.
It's a bit basic, in that the cycle reset is based on time, so you have to wait ~1s to reset the LRU cycle (vs. let go of the ctrl key) but it works well enough and might help others too. see: https://github.com/macta/PharoFlipper Tim
