Describe the solution you'd like
An option within skill groups to use the total level of the constituent skills instead of a distribution of the skills

Why is this feature needed
Skills groups are currently no different than an explicit declaration of each skill. It's a utility more than a unique feature. This change adds new functionality that is distinct and useful to users and adds in the flexibility of excelling in one constituent skills to reach an aggregated goal instead of requiring distinct thresholds

Describe alternatives you've considered
alternatives considered are moot. I am implementing this regardless.

Additional context
Add any other context or screenshots about the feature request here.

NOTE: total levels will still defer to proportions for xp awards. summated levels only works for reqs