Grafana Alert queries

I have a Graph that shows 30 different Switch ports, hence 30 queries.
I want to make an alert for each one of them. Alert A-Z is ok, but the 27. alert condition does not get a letter or an identifier for me to make an alert.
Is this a known limit?
Is it possible to make an alert condition including more than 1 query line? Like "When ()Last of (A-G,5m,Now) is Above 1.

I can add all switch port in the Graph, because we do not us all of them, hence i have to manually add them one by one to the graph.