You must select the + button to add a new remap.
When first launched, no predefined mappings will be displayed. To remap a key, changing it to a new value, launch the Remap Keyboard settings window with the Remap a Key button. Inside PowerToys Settings, on the Keyboard Manager tab, you will see options to: To create mappings with Keyboard Manager, you will need to open the PowerToys Settings. So mapping it against the backspace key, for instance, and pressing and holding will only delete a single character. The F1 ~ F12 (and F13 ~ F24) keys can be mapped. There are some shortcut keys that are reserved for the operating system and cannot be replaced.
