MS_DETAILINGSYMBOLS_CELLLIST no effectConfiguration variable MS_DETAILINGSYMBOLS_CELLLIST is pointing to a newly created design library with custom detailing symbols. When placing detailing symbols however, the default one are still being used.
Variable defines source not tool settingsThe variable MS_DETAILINGSYMBOLS_CELLLIST only defines location where detailing symbols are searched. It does not set the symbols to be used.