Creating line charts using timelion

Elastic Stack Kibana
1

I have the following json fields in my elastic index CountDetails as shown below:

message:
{"File":"File1","Hour":"22","Count":"493"}
{"File":"File1","Hour":"23","Count":"32"}
{"File":"File3","Hour":"1","Count":"45"}

I am trying to plot a line chart with “Hour” in x axis and “Count” in y axis. Then for each File, I would like to see the count for every hour.

I understand that Kibana does not have a feature to achieve it now. So I downloaded the timelion plugin and tried using it. But not sure on what expression should i have to achieve the above line chart. And will the indexes in elasticsearch will be available in timelion?

Any help would be appreciated !!