PCS - Hide checkbox in Table

Summary

How to hide the checkbox in table?

Content

Dear all,

In PCS webform, I would like to display data in a table (Use Data from Connector).
The table is for listing data such as ID, name, email and address.
User do not need to select any rows when navigate the webform. The checkbox just looks strange to users.

My question is: Can I hide/ disable the checkbox in the table?
I tried to upload CSS script (Add Stylesheet) but it does not work.
Is there anything I can do with the setting of <oj-checkboxset>  and <oj-table> ?

Regards,
Thomas