Manipulating ${} variable

Hi there,

I have a data link configured doing a drill-down on a value in a Graph Panel.
Basically it opens another link with the ${} e.g.

Drill-down →${}

However, my query for the series is grouped by two different fields (ip and ASN) - so in my panel it will show e.g. “ 12345” (ip + ASN)
But when using the ${} I only want to add the ip part and not the ASN part… So I am looking for a way of splitting ${} into an array or something.


Many thanks in advance