Dear pāḷi friends,
I made a version of saṃyutta nikāya derived from the 5 vaggos of cst4, all jammed into one file, renumbered into the modern system.
Lots of hyperlinks, easy to navigate and get to the SN sutta you're looking for.
a link to the file herehttps://sites.google.com/site/frankkpublic/sn-cst4-in-mobi-and-epub
Any bugs or comments, you can comment on the bottom of the webpage.