Now I have a classic SPA application implemented using the VUE, VUE Router, VUEX, Vuetify stack.
Recently I saw an implementation of an interface based on editing data in dialog (modal) windows. As a result of studying these applications, I realized that these modal windows open depending on the value of the URL address, and they overlap each other (that is, many windows can be open at one time – a kind of MDI application for Windows).