Actually, you do not need a four-session template, as the opening range indicator allows you to select a European session in any of the European time zones. The opening range indicator can display either full Globex session, Asian session or European session as your choice. In case that you wish to display both Globex session and European session high and low, you need to apply the indicator twice and reduce the opacity of the opening range.
The ranges wil extend into the regular session, and either stop plotting at the end of the regular session or at the end of the trading day.
A session template with 3 sessions per day as explained in the thread will do in any way - unless your European session is different for each instrument.