Insert multiple rows and columns
To insert a row or column, you will normally select a cell/row/column where you want to insert the row / column and use the 'Insert' menu icon available on the toolbar (refer the picture on the right). You can also right click on the cell and then choose the corresponding Insert menu items.
Now if you want to insert multiple rows/columns, here is what you have to do. Select as many rows as you want to insert and then do a right click on the selected row headers and click on the Insert Row Above / Below options. Follow the same approach to insert multiple columns. Instead of the right click menu, you can also use the 'Insert' menu icon available on the toolbar.
Below is a short video demonstrating how to insert multiple rows or columns in Zoho Sheet. Notice that when you insert rows/columns, the new rows/columns will automatically take the format of the preceding row/column.