Is your feature request related to a problem? Please describe
It is difficult to determine which data subgroups fall under which cohorts in common tables. The lack of visual separation becomes clear when hovering over the table sections:

Describe the solution you'd like
Some clear visual separators should be generated between Cohorts, or other logical groups.
Describe alternatives you've considered
NA
Additional context
This problem was noticed in sm.ExploreSubgroups().
Is your feature request related to a problem? Please describe
It is difficult to determine which data subgroups fall under which cohorts in common tables. The lack of visual separation becomes clear when hovering over the table sections:
Describe the solution you'd like
Some clear visual separators should be generated between Cohorts, or other logical groups.
Describe alternatives you've considered
NA
Additional context
This problem was noticed in sm.ExploreSubgroups().