I tried to made an example specific to your need so you can try the following if it can help.
2. Create a custom measure of visits user experience e.g.
3. Create a business transaction and add both the created measure e.g.
4. Plot a new dashboard > Right Click > Edit Filter and then change the interval e.g.
Note: The data collection will be started on the time of new business transaction created/saved in the PWH.
Review the below documentations for the creating and configuring the measures and business transactions.