Did you get it to work eventually? I have the same problem with a not too complex application. Nothing at all happens when i press Ctrl-Alt-E or when I try to bring up the dialog via the toolbar.
I found an alternative solution however. There is another way to access expression definitions and other structural data.
1. Create a new QV doc.
2. Go into the script editor and click on the Table Files button (i.e. browse for a table file).
3. Browse to the folder where your original .qvw is located and select it (You will have to select "Show all files" in the filetype dropdown first.)
4. Tell QlikView to interpret the QV file as an XML table. (See pic below.)
5. You'll find all the expressions in the the "DocumentSummary\Expression" table.
Make sure you comment out everything else in the automatically generated load script, since you'll end up with circular or synthetic relationships otherwise.
I had a doubt in the find/replace feature in the expression overview.
There is an expression which i want to modify throughout the application.
The expression is also present in the Layout--> Show--> 'conditional' PFB:
By anyway can i replace this expression also via Expression Overview as it would be very tedious manually?
Thanks in advance.