Some views use a shared "sub-layout" file e.g. for the table part.
These files are located on
/component/com_jem/common/views/tmpl/
To override copy them to
/templates/(your-site-template)/html/com_jem/common/
and modify as required.
Note: At the moment not all models provide all data so using these common files in other views may not show all data as expected (e.g. event images in day view - see
issue #631
).
@Bluefox: In the path you wrote the "/html" part is missing before "/com_jem".
@Jojo: This sounds like a feature request "make address output configurable (like date/time)".

Something like date/time format or meta data where user can freely place tokens and free text.
This could be used for multi-line output but also as one-liner where linefeed is replaced by a comma (or a configurable separator).