Set View Position （Camera Angle)

I would like to set camera position (View point) at 2 points as below.

One is zoomed rearview mirror.

Second is Zoomed IBIS.

I've been looking for the codes, "view_set_ticketselling" and "view_set_schedul", but I couldn't get them.

Finally, I've found the file to edit.
It is "~.bus".
For example, MAN_D92.bus.
I can change the views.

However, I still can't find place.
I would like to assign hotkey like Viewing Timetable and Cash Desk.

Does anybody know which file should I edit.