Inquiry for adding features to gantt chart in SAPUI5

Hi, currently my project would like to based on below sample and add some features.

The project is using Version 1.72.1.

https://sapui5.hana.ondemand.com/#/entity/sap.gantt.GanttChartContainer/sample/sap.gantt.sample.BasicGanttChart

Features to add:

1) Click button to show/hide the Gantt Chart (Table will always visible).

2) Click button to expand the table height. Should be double the size of visible row.

Is it possible to do like this? Or I need to custom the controller separately?