In a table of contents, if there is an identifier (chapter, appendix etc...) does rule 2.10.2(g) only apply if ALL main entries throughout the whole table of contents are preceded by it? or can an identifier appear further down in the table of contents and have that rule still apply?
I'm not sure exactly what you mean...but the rule is for when the identifier applies to all entries after the identifier (so you COULD have some prelim matter that doesn't have the identifier, then the identifier (chapter, etc) would apply to everything after that - until the end matter (which should be separated by a blank line. If this does not answer your questions, maybe send me a picture of your Contents?
In the end matter there is a lot of Appendix entries. (for example Apprendix 1, Appendix 2 etc...)I was wondering if the word Appendix could be an identifier. I'm new at this and sometimes understanding the rules elude me.