When creating a new table schema, there seems no way to set the data type of a field without using the mouse.

Reproducible: Always

Steps to Reproduce:
1. Open table in "Design" mode
2. Select cell in "Field caption" column
3. Type "Tab" key or "->" key
4. Try to select an entry from the list only with the keyboard
Actual Results:  
When the data type field is reached, e.g. by pressing the "->" key or the "Tab" key when in the field left to it, pressing the "Enter" key or starting to type (the name of the data type) should enter a mode, where...
the "tab" key is used to move the cell cursor to the next field to the right and the "Up-arrow" and "down-arrow" keys are used to move the cell cursor to the field above resp. below.

Expected Results:  
When the data type field is reached, e.g. by pressing the "->" key or the "Tab" key when in the field left to it, pressing the "Enter" key or starting to type (the name of the data type) should enter a mode, where...
the "tab" key is used for tab-completion and the "Up-arrow" and "down-arrow" keys are used to select from the available field.
Pressing the "Enter" key again should leave this state.