Tempo/Tracing Dashboard

This is regarding search variable in one of the Grafana dashboard i.e. “Grafana

As there are lots of trace ids being generated every time, so there is a requirement of searching for a arbitrary Traceid in the table but for this, I am not able to create a variable.

Please help me with this how can I create that specific search variable in my dashboard which can help me to locate a random Traceid which will help me to check the logs of that specific Traceid.

Thanks