Google Sheets App: New Options

While using the new Google Sheets app I noticed a few additional tools that I do not remember being in the original Google Drive app.  If you click the header of a row or column it pulls up these new options.

1)  Insert Rows/Columns:  You now have the option to insert a row/column before or after your selection.

2)  Delete Rows/Columns:  You can not delete a row/column from the app.  I do not remember that being an option.

3)  Sort:  You can sort A->Z  or Z->A from within the Sheets app.

All of these options may have been available in the Google Drive app but they are new to me.