Any way to know the total estimated time for test cases?

I want to know the total sum of estimated time for test cases for a suite.
It would be better to divide into subtotal for section.
Is there any way that I could archive this?

The only way I can come out is assigned to somebody and create a work load report.
But I have to create a test plan/run and assigned to somebody and then create a work load report.
This took too many steps for this purpose.

Any idea about this?

Thanks.

Alston