Hello and good afternoon everyone. My name is Fran, and I'm from Jerez de la Frontera, Spain. I'd like to ask if anyone can help me. Do you know how to create an expandable container in the interface while the app is running? You can use the mouse or your finger to click on the corner and reduce or enlarge the size and contents. I know it should be possible, but I can't find the key. I'm hoping for some help. Greetings from Spain.