Enabling Editable Grids

Hello Microsoft Team,

I would appreciate if you could help me with the following:

I have MS Dynamics CRM Online 2016 and I want to Add Control for my entities to have an Editable grid. Following link explains how to do this, but I don't have an "Editable Grid" control, I only have Calendar Control and Timeline Control.

https://community.dynamics.com/crm/b/sonomapartners/archive/2016/11/29/dynamics-365-editable-grids

Please advise me on how I can add Editable Grid Control and then follow the instruction on the link.

Thank you in advance!