How to pass a parameter to a report that uses federated search?

[Tommiee]

Hello,

I have a report that uses federated search:

index="federated:xxx" filter="Value"
| rest_of_the_search 

I can insert it in my dashboards as follow and it works: 

<search id="base_search_name" ref="report_name"></search>

However, I now want to give an argument to this second report:

index="federated:xxx" filter=$token$
| rest_of_the_search 

So that I can call it like this:

<search id="base_search_name2">
<query>| savedsearch "report_name2" token=$dashboard_token$</query>
</search>

This does not work. Because probable "savedsearch" does not work with federated search?

https://docs.splunk.com/Documentation/Splunk/9.0.1/Search/Aboutfederatedsearch

Long story short,

How to pass a parameter to a report that uses federated search

Thanks in advance,

Tom