No, the upload somehow doesn't work.
Then typed manually:
1. After contract confirmation: 3%
2. After completion of the building permit documents: 5%
3. After completion of the foundation slab: 10%
4. After delivery of the DT compounds: 10%
etc., always 10% steps
Last point: After announcement of completion 2%.
Apparently, this is not unusual, although I am still not sure whether our payments really run ahead of the construction progress.
Possibly because the points contract signing and building documents do not mean that anything has happened on the construction site?