I have a Samsung Galaxy S 2 (or I9100). On this phone I have been running CWM with Cyanogenmod for quite a while.
Recently, I updated to Cyanogenmod 12.1. It was quite a hassle, but it works fine. The only real problem I have with it is that the recovery has changed. Now I have CM's own recovery, which misses a nand backup feature. Since I have always used CWM, I would like that back. But maybe something else is fine too, I do not really know anyting about the world of recoveries.
This leads me to the folllowing main question: can I get CWM back with CM 12.1? And some side questions: is it even possible to just flash another recovery? Why was CWM removed from CM 12.1? Is there another alternative flash? How would it work, flashing a new recovery?