Is it possible to link a JIRA project to a Forecast project using a template project?

Question

Is it possible to link a JIRA project to a Forecast project and then select one of the templates for the Forecast project?

Answer

If a JIRA project is linked to a Forecast through the JIRA integration menu and by clicking on the Sync Project option you will not be able to select a Forecast project template to copy. 

In this case, create the Forecast project from your template. Then, once the project is created, link it with JIRA within the project's Settings > Integrations After the project is created then link it to  JIRA project.

To learn more about syncing projects between Forecast and JIRA see, Syncing JIRA projects with Forecast projects.