HOW TO SET DEFAULT TEMPLATE
Set Default template going to Chronosly > Settings > Template Editor
Once you are in Template Editor settings, to set Default template choose between templates within list what will be used in as default.
FORCE DEFAULT TEMPLATE OPTION
Force default template: Enable this option to allow only the default template to be shown in all the views, even if they have been created by using other templates with different views
You can also change (default will remain the same), if needed, the template once your are into the Template Editor.