Elkie

There are some structures, of which none is labeled as default.
I can choose between those 2 formats:
https://blog.hooptrick.org/2007/10/12/sample-post/

https://blog.hooptrick.org/archives/123

a third option is userdefined which suggests this format string:
/%year%/%monthnum%/%day%/%postname%/

Thank you – did it, but it did not work ??
Any other idea?