Launch the V 4.0 , close the Home Page arrived inside the prog
import the MOI file STP in the V 4.0 (Menu File "Open")

The Format STP is "only read" but...
... use the same old trick!

Go to the head of the arborescence, draw a 3D SPhere
and Right click on the head arborescence then click the enabled case Lock for "unclick it" !

And have fun direct modeling!



All will works fine! :)



Else direct importation SKP format works fine in the DSM V 4.0! ;)
It imports not textures, only color and name Group/component arborescence!