Hi, I am trying to open a form for a field with "when_button_pressed' trigger from an existing form (say form_abc).

The called form form_xyz is a tree structure.

The scenario is :
In my form form _ABC,for the field gl_code, when ever i click on the button ,it should open a new form form_xyz which is a tree structure form.

Now in the form form_xyz,whenever I double click on any node,that value should become the value of the GL_CODE field in the calling form form_abc.

Please help me how to pass the value from fom_xyz to form_abc.

Please help.
Expecting a quick reply.