Group/Ungroup rows/columns in Sheets Android
Group rows/columns:
1. Open your Sheets file and tap on the Tabs dropdown.
2. Switch to Data tab.
3. After you have selected the cells you need to group, tap Group.
4. Select between Rows or Columns.
To ungroup:
1. Tap Ungroup.
2. Select between Rows, Columns, or Clear Outline option.