Clear CURRENT Report filter when passing a filter through the URL (See image in post)

Hi all, 

We have this report that filters on one specific id at a time.

Now we want to pass a value to filter on that field from another app. 

?filter=Datsetname/Fieldname eq 'value'  is what we add to the url and then get the filter applied. 

PROBLEM :

Because there is allready a filter applied, we want to , when the filter is passed through the URL, to remove the orriginal one and use this one instead. 

So, looking at the image, Keep filter 2, remove filter 1.

I cant publish the report without any filter applied due to the amount of data and visualisations im using , it kills the report in terms of speed etc.

so i need to publisht he report with a filter allready applied , we just want to pass another value and replace the current one.

Hope this makes sense

thank you