Has anybody idea, how to make TextBox with commands OK, Back which have same behaviour like Nokia's standard text box?

It means:
<some text>
OK...............Clear
(Clear is added automaticaly)

<empty text>
OK...............Back

I can reach only following:

<some text>
Options...............Clear
(OK, Back)

<empty text>
Options...............<empty>
(OK, Back)

On TextField in form is this possible.
Thank you.