The table tool lets learners fill text or numerical data in a table. You as the teacher, define the rows and columns of the table, students cannot change those..

If learners like to make a visualisation of the numerical data, you should use the Data Entry tool instead of the Table tool and the Data viewer to visualise these data. For entering text, the Table tool is better suited than the data entry tool. 

This app can also be configured to run in collaboration mode. To enable collaboration, add the Collaboration Tool to the ILS in Graasp.

To learn more about how to configure the app, visit the Support Page's section on How to set up Apps, or use this direct link.