I want block a workorder with my raspberry pi 3. For this, I need select the parameter 'loss_id' and cal the method 'button_block'.

When you want block a workorder you can select the loss_id and when you press in the button "block" you call the method button_block. I need select the loss_id with XMLRPC before  I call the method. I don´t know if this is posible, if someone knows how select a parameter os any module with XMLRPC could be usefull for me.