Linkable text boxes
When creating a book, we quite often have multiple columns of text. When we're given pages & pages of Word documents to past into the program, it would be ideal if we could link text between columns. This enables text to seamlessly scroll from one column to the next.
Indesign does this. At the bottom right corner of a text box, there is a little square (attached image - circle on the left). If you click this, it creates a link to the next column that you choose. If there is more text that doesn't fit into a text box, it shows a red + to let you know that there is text hidden & create another text box (see image - circle on the right)
If the software did this, I probably wouldn't use Indesign!