Netflow appication port

Hi Netflow Team,

I define a range of port for internal application (512 to 1023).
But part of this range is already define for few applications. Then when I look at the applications part of netflow it show multiple application, even if it's the same.

So I delete application (ie: port 577) to ensure that our application range take in account this port.

But when I go back to the netflow I just loose this information it has not been added to the range that I defined.

So my question is :

Do this deleted port will be added next time it will be use within the application port range that I defined ?

Thanks and best regards,
Flyingup