The numeric mode has been deleted from the free version. The click sounds, typing aid, has also been deleted from the free version.When writing message, pull down the menu bars from the top, click change keyboard, click choose keyboards, activate TSL beta IME. Choose keyboard again.
The freelancer I hired to write the first edition has stolen my idea and uploaded the first edition to Play Store in his own name. I do have provided the source code of the chinese TouchSwipeLift keyboard for his reference. Everything is on the record in my workroom on Upwork.
The UI and code structure have improved substantially in the second edition.