I was try to add a new label on report button on tree. The button will display after choose the one of tree data. I did it. And i build a function for executed after click the button. The problem is, i don't how to call the function inside act_windows.
<act_window
id="action_report"
name="Print Report"
res_model="model.report"
key2="client_print_multi"
src_model="model.report"/>
How to call a fucntion (def) in that. thank you.