Multi-mix resource

Hi all

I want to set up a multi mix resource to have time and capacity in T for example.

In the Time-Cont capacity tab I enter MASS and the capacity 20T.

The systeme is multipling 20 times 24 hours a day to get 480 hours available. I want to limit to 20 T a day.

I the routing in ecc is T per H.

What I am misising?

Thanks in advance