Do the tags being trended need to be stored in a DB or can you use a SQL tag? I couldnt find any help topics on this tool in the help menu.
The data driving the chart needs to come from a database table. SQLTags are (currently) realtime only. SQLTags History is a feature that is planned for a future release. For now, you’d use a FactorySQL group to log the history of an OPC item.
The documentation for the easy chart is under:
Technical Reference / Components / Charts / Easy Chart
Hope this helps,