rabykh --
No, there's no way to force this short of using a macro. What I would do is
to set the Enterprise Gantt Chart as the initial View in every enterprise
project template used in your system. This way, whenver a PM creates a new
project using an enterprise template, he/she would start with that View.
After he/she saves and closes the project and then reopens it, again, he/she
would see that Enterprise Gantt Chart view. Hope this helps.