# How to config Control Button format to base64 decode? **URL:** \ **Category:** Kibana\ **Created:** [September 3, 2024, 9:32am UTC](https://discuss.elastic.co/t/how-to-config-control-button-format-to-base64-decode/365937 "2024-09-03T09:32:37Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![zhangzx1996](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/zhangzx1996/32/137253_2.png) [@zhangzx1996](https://discuss.elastic.co/u/zhangzx1996)\ **Post date:** [September 3, 2024, 9:32am UTC](https://discuss.elastic.co/t/how-to-config-control-button-format-to-base64-decode/365937/1 "2024-09-03T09:32:37Z")
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. ---
**Author:** ![Marco\_Liberati](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/marco_liberati/32/82953_2.png) [@Marco\_Liberati](https://discuss.elastic.co/u/Marco_Liberati)\ **Post date:** [September 4, 2024, 8:29am UTC](https://discuss.elastic.co/t/how-to-config-control-button-format-to-base64-decode/365937/2 "2024-09-04T08:29:49Z")
Hi @zhangzx1996 I do not think that is possible. ---
**Author:** ![zhangzx1996](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/zhangzx1996/32/137253_2.png) [@zhangzx1996](https://discuss.elastic.co/u/zhangzx1996)\ **Post date:** [September 13, 2024, 2:43am UTC](https://discuss.elastic.co/t/how-to-config-control-button-format-to-base64-decode/365937/3 "2024-09-13T02:43:46Z")
> [@zhangzx1996](#): > > 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. 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.