If you use Logical database you'll have:
- Key data
- You can limit flow type to show only interests (flow types 1200, 1150, etc)
The result might be like this - the same as "Cash flow" tab but only interests on the key date. Also you can add postings parameters to see what was posted.
The only instrument you need - SAP Query (tr. SQ01, SQ02, SQ03)