Table panel: Update current dashboard template variable

Setting a dashboard link to a specific cell. on table pannel
can you help me how to set a link to a specific row, but not for the whole column
I went through this link to but here it column style applying the whole column:
https://play.grafana.org/d/000000031/table-panel-showcase?tab=visualization&panelId=10&fullscreen&edit&orgId=1

Thank you