I would want forge to be put in reach and with much more freedom.
Welding objects
Change scale of the X axis, Y axis, Z axis of object
Geomerging objects
Choose an object to be frozen in place or not
Change color, transparancy, luminosity, shinyness of object
Change time, terrain, weather, liquid of map
NO budget
INFINITE objects
Place AIs
Place corpses
Place blood, bullet marks, scratches, etc