My master document has monthly diary documents from Jan 1998 to Jan 2015. My master document is .odt I want to add all the months since. The Navigator opened but did not offer insert and when I closed it I cannot get it back. F12 does nothing. How can I add Feb 2015 on the bottom please? I evidently could do this once but I have forgotten how. It was probably Open Office then? Windows 10. LO 7.3.2.2 (x64). 204 documents currently, about 86 to add. I wished to be able to search whole document, but also open specific months.
Help us to help you: edit your question (don’t answer with a comment) to add OS name and LO version. How many sub-documents have you already inserted?
Do you really need the complication of master+subs? If your monthly diaries are relatively short, you could make them a direct part of a global document (eventually once document per decade to keep it “manageable”).
Also, unless you customised your LO copy, F12 is a shortcut related to numbered list.