I do not have access to the version of dashboard you are using, but it seems the question posted is pretty clear
Follow the below steps and see if it could answer your question
I am using the super store data as the sample.
Create a parameter to input your end date (4/6/2018 as per your example)
Create a Fiscal start date field
Creating a normalized date field so that it is easier for comparison where Order Date is your actual date field
Create the following boolean function that will filter for dates between your fiscal start and the end date input which is dynamic since it is a parameter
Hope this helps
Thanks for your input, Shin!
Thanks, Jeevan. I'll definitely implement and see how this works.
Could you mark real correct post as "Correct".
Other community people are referring this post as answered, but this is confusing.