You can SCULPT the Box parts like as Chassis.(sample:_PARTS_BoxCap)
Dummy bodies can be invisible temporaly.(sample:_PARTS_Rotator)
Modify & adjustment for LoD of the Box and Capsule.
Added STOP action setting to Thruster (left end of slider).
Added the export function of the machine model.(Push "Export" in Practice, Viewer:MeshLab)
Fixed some bugs.
Release Notes (Ver.0.206)
Source: Steam Community (opens in a new tab)