Dear all,

I have two more questions about reusing blocks and interreferencing  
them.

First of all, I have set up problems within different chapters, and  
would like to have a separate chapter at the end that gathers
the solutions chapter by chapter like

\chapter{Solutions}
\section{Solutions from chapter 1}

get these here

\section{Solutions from chapter 2}

get those here


A sample file is attached below that has the layout, but all I know is  
how to retrieve all blocks at once. Would I need to create another  
block at the end of each chapter, and
retrieve these at the end? If so, how?

Then, I'd like to have little inconspicuous hyperlinks from the  
exercise to its solution and back. So far, I can only do this  
manually, as indicated. I would prefer to have the text Exercise in  
the enumeration
to become a hyperlink to the corresponding solution, and vice versa  
for the text Solution.

Is there a way of doing this (or something similar)?

Thanks a lot for all the help!

Matthias