Page Comparison

In the stream properties on the right, set:

1. Basic Settings → Period to Transactional
2. Tick Audit Manual Changes
3. Click 

   Insert excerpt
   _save _save nopanel true

    and then click on the

   Insert excerpt
   _pin _pin nopanel true

    to keep the stream properties open.
4. In the Attributes section, double-click Description and change its Type to Bigstring then click 

   Insert excerpt
   _finish _finish nopanel true

   .