Thanks for your reply. Actually, we're not using any reporting source for this setup. I have already changed the disabled flag to false to enable selection, but it appears that a cloud configuration for analytics is required in order to make a selection.
Could you let me know if you had to create a cloud configuration for analytics? Also, if possible, could you share your sample metricsJson so that I can compare and see if anything is missing in my JSON?
/libs/cq/analytics/components/testandtargetpage/dialog/items/tabs/items/tab1_general/items/a4tAnalyticsConfig
metricsJson:
{"goals":{"metrics":[{"title":"MY PRIMARY GOAL","postGoalSuccessAction":"","type":"engagement","worth":"","engagementType":"pageViews","metricLocalId":10}]}}