Missing "Total Sum" in "Rewards Points" earning rules

Missing "Total Sum" in "Rewards Points" earning rules

Hello Amasty and Community,

I bought the extension "Reward Points" today. Everything looks fine, but I experienced a problem configuring the earning rules.

We offer reward points with order amount dependency. The more you buy the higher your points credit shall be.

Example:
From 1 € to 50 € => earn 5 €
From 50 € to 100 € => earn 15 €

I can use the conditions in the earning rules:
Cart attributes 'Subtotal' >= 1 AND 'Subtotal' <50
and
Cart attributes 'Subtotal' >= 50 AND 'Subtotal' <100

This works, but I'm missing the condition type for the "Total order sum", and this is what I really need.

The reason is that the subtotal contains no rebates and points redeem.

So if a customer has e.g. 40 € credit in points and buys for 70 € the total sum is 30 €.
He should get 5 € in points.

But since the rules depends on the subtotal he will get a credit of 15 € in points - which is not intended.

Did I miss anything? Otherwise please add a possibility to use the total sum as a condition.

Thanks and regards

Thomas