If it may be seen by ones who also struggle: there are more options to set zoom / pan / position / lookat. Like so:
Some of them seem to have some kind of "intelligence", i.e. even for the same camera settings the perspective is changed sometimes (I guess: if the bounding box of displayed parts changes).
Code:
0 !LPUB ASSEM CAMERA_ANGLES LOCAL 7.00 2.00
0 !LPUB ASSEM MODEL_SCALE LOCAL 0.4579
0 !LPUB ASSEM CAMERA_UPVECTOR LOCAL 0 -1 0
0 !LPUB ASSEM CAMERA_DISTANCE LOCAL 10213236.0000
0 !LPUB ASSEM CAMERA_POSITION LOCAL -4.3299 10.3925 -1861.8821
0 !LPUB ASSEM CAMERA_TARGET LOCAL -59.7853 186.0640 -442.2720
Some of them seem to have some kind of "intelligence", i.e. even for the same camera settings the perspective is changed sometimes (I guess: if the bounding box of displayed parts changes).