Handle radio-button for text editing

Hi experts,

I have a screen with a group with two RADIO BUTTONS (RB1 and rb2) and a FRAME containing a CUSTOM CONTROL set to texts.

What I am not able to do is deal with the radio-button so that when I click on rb2 I turn modifying the text box and when I click on the RB1 the text box status is locked, i.e. screen-input = 0.

Tks,

Marco

Brazil