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In the following use case, the issue gets automatically its insight field to display specific/desired insight objects.
Add the Update or copy field values post function to the desired transition or create a new transition.
You might want to add the post function to the create transition of the workflow so that the post function gets executed every time a new issue is created.
Choose Current issue
Choose your desired Insight field.
In the popup, choose the value Set field value manually (parser expression)
Set it to Basic text and use the following expression
In order to display multiple objects, make sure that the Multiple option is checked in your Insight custom field configuration as you can see below:
Your expression would be then like the following if you want to display 3 objects:
Choose Current user