To access the variables in a list you have to use the \structurelistuservariable command.14. Januar 2018 um 21:44Now, my second issue with user variables:
"""
\define[1]\ChapterTocEntry{%
\doifnotempty{\structureuservariable{author}}{\structureuservariable{author}\crlf }%
#1%
\doifnotempty{\structureuservariable{subtitle}}{\crlf\structureuservariable{subtitle}}}