How to Keep Global Slicer While Using a Local Override on Subpages?

jaryszek 

oh okay i get it now , like amitchandak said I also doubt that you can stop bidirectional sync slicer & skip bookmarks to achive what you need , however my workaround suggestion is to do with a global & local picker slicer 

1.first create a slicer table 

SlicerSelector = 
DATATABLE(
    "Option", STRING,
    {
        {"Global"},
        {"Gross Sales Analysis - Sub Page"}
    }
)

2. create two months tables for both pages

3. create an inactive relationship between these two tables

4. create measures for each calculation you need ,(i have only created three in this example) 

5. create these switch measure for each measure to pick which slicer 

Total Gross Sales Switch = 
VAR SelectedOption =
    SELECTEDVALUE(SlicerSelector[Option], "Use Slicer 1")
RETURN
SWITCH(
    SelectedOption,
    "Global",
        CALCULATE(
            [Sum Gross Sales],
            USERELATIONSHIP(financials[Month Name], 'Global'[Month Name])
        ),
    "Gross Sales Analysis - Sub Page",
        CALCULATE(
            [Sum Gross Sales],
            USERELATIONSHIP(financials[Month Name],'Gross Sales Analysis - Sub Page'[Month Name])
        )
)

6. and now apply these measure to each visual 

7. use slicer table option column as a single select slicer , now once you pick global or local it will pick that specific slicer 

 I have attached the sample i have created for your reference