The Page deck of the Writer sidebar (including Format, Styles, Header and Footer sections today) is missing in the sidebar of Writer master documents.
As Writer master documents are only Writer documents that contain another Writer documents, there should be no difference between both when using the same features. (LibO help citation: "A master document lets you manage large documents, such as a book with many chapters. The master document can be seen as a container for individual LibreOffice Writer files.")
Build ID: 7556cbc6811c9d992f4064ab9287069087d7f62c
CPU threads: 8; OS: Windows 6.2; UI render: default; Locale: de-DE (de_DE); Calc: CL
Reproducible with LO 18.104.22.168
patch - https://gerrit.libreoffice.org/42050
Yousuf Philips committed a patch related to this issue.
It has been pushed to "master":
tdf#112205 Show page sidebar deck in writer variants
It will be available in 6.0.0.
The patch should be included in the daily builds available at
http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
Affected users are encouraged to test the fix and report feedback.
Set to VERIFIED FIXED.
Build ID: 722161e26437b25adc449f773836d369bd0cb081
CPU threads: 4; OS: Linux 4.10; UI render: default; VCL: gtk3;
Locale: de-DE (de_DE.UTF-8); Calc: group
moggi's auto updater build, 2017-09-24
Thank you very much, Jay!