Hi Merchanter
Today the amount_spent filter cannot give you the amount within a date range, but I will pass on that feedback. In the meantime, this filter can get you to something similar:
amount_spent > 1000 AND products_purchased(since: -60d) = true
This gives you customers where the amount spent is >1000 AND has an order in the last 60 days. But, it could be that they spent $900 last year, and $200 on an order in the last 60 days, so it’s not perfectly what you are looking for.
Hope that helps!
Egan