I know there have been similar questions and I have looked multiple discussion but could not find an answer that works
with my scenario.

https://community.tableau.com/message/317346

https://www.theinformationlab.co.uk/2015/06/17/tableau-good-to-great-hiding-options-in-quick-filters/

  https://community.tableau.com/ideas/3846

https://community.tableau.com/ideas/4172

https://community.tableau.com/thread/152773?start=15&tstart=0

https://community.tableau.com/thread/149969

http://kb.tableau.com/articles/howto/filtering-view-without-filtering-underlying-data

I have attached a mock up of data that hopefully represents what I am trying to accomplish.   The real data
is "Survey based responses" which we want to report on based on Employee hierarchies (level of organization/ who reports to whom).

I need to report on responses but since data is anonymous if there are <= 5 responses for a given supervisor/level
then we cannot display the data for that supervisor (i.e. would not include that supervisor in that filter) however that data would be included in levels above
that supervisor as long as the No of respondents when rolled up to next level of manager would have 5 or greater responses.

I "technically" know how I can do it using worksheets as filters however I will have 8 levels and on my "real data" the lists would be way to long to display as a list for
filtering.

The mock up data is not survey data but is employees that rollup to supervisor which mimics survey "responses".

The dashboard called "Cascade Spv" is here just to show you ideally what the dashboard would look like with Filters (there would be a graph instead of  text tables).

The dashboard called "Quick Filters"  - I have screen shots below to show what is the problem etc.

The dashboard called "Use list as filters" is example of what works in theory but I cannot have 8 long lists
on a dashboard.  If there was a way to convert a list to a dropdown that would solve my issue.

If I de-select Employee38 the value would change to 25 (which is not what is needed).

In the The dashboard called "Use list as filters" - I am using lists as filters and I am able to filter the list and remove "Nulls" and responses <5 - via the following calculated
field.

if [L3 CNT]>=5

and [L3]<> 'NULL' then 'Y' else 'N'
end

Hope this is fairly clear as to what I need to accomplish