hello There are two possibilities how to select column block. As default is option, what select column block with Alt+mouse, same style as in other office applications. When this option is active, aby mouse click without ALT key change block back to normal.
If you prefer change block type and select block with mouse, you need to deactivate option in program settings / Editor 1 - []Alt sets column mode You can always select column style and select block with shift + cursor keys -- <https://forum.pspad.com/read.php?4,76469,76470> PSPad freeware editor https://www.pspad.com
