Mass update option missing for security group

Hi,
I am facing an issue in the list page. In account list and contact list page mass update option is missing for security group.
This is what I see:


Permits are ok:

Is there any option available to enable it in the studio?
I am using using Suite CRM Version 7.11.15
Please help me.

Thanks in advance.

I think that in Studio/Fields there is a check-box to make fields available in Mass Update. But I am not sure this is the same thing, because it is a relationship, not a field. But perhaps you can have a look there, compare with other modules, etc.