Unable to set plant and storage location in Batch as required/mandatory

Hi Experts,

I am having a problem regarding field controls.

I would like to make plant and storage location as mandatory/required in MSC1N,MSC2N,MSC3N and MSC4N.

I have follow the path below

SPRO-logistics-general-batch management-bath master-field selection batch master-assign field to field groups

What i can see is field groups are being assigned to field name.

My question is, where do we go to to set the field group?

Thanks in advance!