Use Jira customfield instead of Target Start and Target End as a standard

In a plan you are able to switch the start and end date to be based on Jira customfields instead of the standard fields "Target start" and "Target end".

It would be great to be able to configure Jira customfields as a global standard for new plans.

At the moment you have to edit every plan manually to have the plan based on the correct date fields (if you use something else than Target start and end)