There is also another physically-identical keyboard, the Thinkpad Multi-Connect Keyboard, which allows you to toggle between 3 paired devices.
- HID Name: ThinkPad Multi Connect Bluetooth Keyboard with Trackpoint
- Model: KT-1525
- P/N: 4X30K12182
- Fru P/N: 03X7111
- Vendor ID: 0x17ef
- Product ID: 0x6083
- MFG: CEM 2019-04-02
It appears to be China-only, and only available through sites like AliExpress. There are no drivers for any OS (iOS/Android or Windows), just a single-sheet manual is available here: http://webdoc.lenovo.com.cn/lenovowsi/new_cskb/att/147372/%E5%BF%AB%E9%80%9F%E4%BD%BF%E7%94%A8%E6%8C%87%E5%8D%97.pdf
Unlike the Compact keyboards, the keyboard does not have (known) built-in
Fn-Lock functions, Fn, Fn-F1 and F1 are all separate scancodes, so they can be
remapped using a hwdb
database.
Keyboard-supported key combinations:
- Fn+Up/Down: Trackpoint sensitivity
- Fn+Delete: Change paired device type (Windows/Android/iOS). Changes behaviour of some keys, e.g. Super.
There is no known way of performing Fn-Lock (even under windows), or changing middle-button behaviour. See: #48