Only sonar map contacts ?

[ichso]

Hi,
because I didn't find anything useful:
Is there a mod (or at least a possibility) to turn just the map contacts for sonar contacts on ? I don't want to get printed what my watch crew spots out there, just what can be heared from the hydrophone. Which would make evasive maneuvers much more practical because the sonar man always just concentrates on one vessel.

Thanks, i.