Mass update option missing in suite crm

I am facing an issue in the list page. In account list page mass update option is missing.

Please check the images, In the accounts list, ‘Delete box’ is there. but when i select records and supposed to do mass update, Only delete button is appearing and the ‘drop down arrow’ is missing so that i am not able to select other options.
Is there any option available to enable it in the studio. I am using using Suite CRM Version 7.5.3, Sugar Version 6.5.23
Please help me.

Thanks in advance.