Dear Timo,
thank you for the detailed explanation — it makes sense.
My use-case was mainly reporting: a monthly view in the transition monitoring would make it much easier to prepare our monthly reports, since manually downloading the data each time is quite time-consuming.
That said, having thought about it a bit more, I take your point about monthly aggregation potentially being confusing (e.g. stations that were in GTS only for some days and then in both WIS2 and GTS for others). Rather than complicate the tool, I'll write a small script that pulls the daily data and generates the monthly report automatically. That should solve my problem without losing the responsiveness of the daily view.
Thanks again for looking into this.
with kind regards,
Tarik