There are 2 patches for centericq-4.20.0. First is for history reversing/full screen history and show/hide nicknames in history. The second one is for cycling through chat windows.
Created attachment 50870 [details]
centericq-4.20.0.ebuild with a new USE=icpatches for adding the two patches
Created attachment 50871 [details, diff]
Created attachment 50872 [details, diff]
chat cycling patch
Upstream development is dead.