Need help in creating a filter (number range) that would count medical conditions as a function

[adam12237]

Hi!

I have a mini-tabular model based around medical conditions, which is supporting an interactive dashboard: 

I was wondering if there was a way to create an on screen number range filter (similar to 'ConditionCount' above) that would 'react' to the number of [Conditions] selected:

For example, if I selected Asthma, BPH, Cancer, and CHF, the range would be between 1-4, essentially tallying count/sum of conditions for a patient as a function of a fluid array of conditions.

Thanks for any help!

[adam12237]

here is some deidentified data:

Essentially, it is a new calculated column, performing a countrows fx, for each patient in evaluation.

For example, the new column would count 6 conditions for the first patient, and list 6 for row...