Search/List Custom variable

Hi,
i was looking for a way to filter visitors log by custom variables (as search fo ip address explained in 301 Moved Permanently )

Can you help me?
I’ve already read topic 301 Moved Permanently but it doesen’t seems to work.

I have to search for custom variable “nlReferrer” value "mymail@example.com"

Thanks

you can use the “widget” view (go to WIDGET link), then add the same parameter as you would for the API request, documented in Segmentation - Compare segments of visitors - Analytics Platform - Matomo