I read project readme, checked client side and server side configurations, and no such feature exists - YES

cloth-config-8.2.88-forge.jar
player-animation-lib-forge-0.3.5.jar
bendy-lib-forge-2.1.1.jar
bettercombat-forge-1.3.1+1.19.jar

Is your feature request related to a problem? Please describe.

During swimming(or crawling which use same posture and animation), only front attack animation is showed no matter where you see and attack. It becomes a little bit weirder especially in first person view. I'm not sure it is possible, but I think it will be better if direction of attack animation change during swimming just like on land.