My b2evolution Version: 1.10.x
2.4.2
Back in 1.9 (I think) we had the back office option to change the number of "Latest Comments" to display.  It seems to be limited to 20.  Is there still a way to change this in the back office?  If not, is there a hack?
If it is a setting it will be in the widget (Blog settings -> widgets -> pick the widget). Dunno if it's there or not though.