I start to edit a page, add the Create from Template Macro, configure the macro for one of the templates in the drop down list, save the page, click the button ... and the "Create ..." dialogue appears and asks me to select a template.
Why would the Macro default to the "Create ..."-dialogue instead of using the template specified in the macros drop down menu?
Short answer as of 2019-11-21: don't use "0" as a space key in CONFLUENCE.