SOLVED add appendix to a chapter >>> not quite!!

[Wolfgang Engelmann]

Am 13.04.21 um 10:35 schrieb Wolfgang Engelmann:
> Thanks to all who helped me with the appendix to a chapter.
> The following link
> https://github.com/scottkosty/lyx-princeton-diss
> allows to download the scottkosty /lyx-princeton-diss
> (use the green box "code")
> The trick is to put (by using the \usepackage{appendix} in the preamble 
> behind the place where one wants to insert the subappendix/ces (here 
> chapter 3) the following (as an example):
> 
> \begin{subappendices}
> 
> Appendix
> 
> 3.4.1 First appendix of Chapter 3
> 
> 3.4.2 Second appendix of Chapter 3
> 
> \end{subappendices}
> 
> I modified it to get the appendix in a section, not chapter by changing 
> the nesting depth of the item and changed to appendix of section 3
> 
>   Works nicely.
> 
> Wolfgang

Unfortunately the next section (which is in my case 3.5) is renumbered 
to 3.1
too bad!!!

\setcounter{section}{3.5} (in tex)
before section 3.5 does not help either.

Wolfgang