Use Case

When pressing the enter key, the default behavior is to move the selection down, support a configurable option to move to other directions like Excel:

https://excelribbon.tips.net/T006712_Cell_Movement_After_Enter.html

Proposed Specification

1. a library property to determine selection move direction after pressing return key: io.keikai.ui.selectionMoveDirection
2. Available direction: (all lower cases)

• down (default)
• up
• left
• right

3. the property supports both library-property and custom-attributes
4. If a developer specified an unavailable direction, throw an excpetion
5. The selection moves the specified direction when an end user presses the ENTER key.