Dynamic Slicer Drop Down List from two tables

I have a Dynamic Slicer Drop Down that shows the number of days it takes from one step to another for the expense reimbursement process. I have steps 2-6 in one table that draws from the table that has the calculated days by expense report. However for the expense incurred visual, since those values are by expense line item, I am having a hard time merging it to the visuals for steps 2-6.

1) Expense Inccured 

2) Submitted Expense Report

3) Payee Approver

4) Fiscal Approver 

5) AP Approver

6) Reimbursement Payment

Is there a way to have all these visuals show up in the same dynamic slicer drop down?