I was trying to use the window shape in the Container category and realize that I cannot put a name on it. On Windows OS, the window shape has name on the top left when opening a folder for example. Adding a text box just to put a label of the window shape is kind of pet peeve for me. A simple double clicking of the window shape should be able to put the label of it. I think it's kind of simple feature of a shape that is not considered.
Thanks for your time reading mu suggestion :)