Super Fast Table Editing in Adobe InDesign

Want to change the number of rows or columns in a table really fast?

With the Type tool, move your cursor over the bottom or right edge of the table. When the cursor changes to a double arrow, click and hold, then press and hold Option/Alt and drag to the right to create more columns. Or drag down to create more rows.

This trick works in reverse too, so you can remove rows and columns by dragging up or to the left while holding Option/Alt.