How to config Control Button format to base64 decode?

I want to build a dashboard on kibana. But my field was base64 encode that I want to search. So I want the Control Button can be format base64 decode, and when I select one element ,kibana can use the base64 value to search in ES.

Hi @zhangzx1996

I do not think that is possible.

Thanks. I resloved this problem by added a pipeline to decode data and stored to a new field in ES, then use the new field to search in Kibana.