The legs on this trailer turn down once the trailer is reversed into an obstacle which pushes the bumper. Note that the trucks with poor grip might not provide enough pushing power to engage this mechanism.
You can mount one 40ft container or two 20ft containers on this trailer. See all my Model Team container transport models under the tag [https://brickhub.org/i/tags.php?tag=container](container).
For Studio 2.0, these parts should be saved in C:\Program Files\Studio 2.0\ldraw\Custom Parts\Parts on Windows and Applications/Studio 2.0/ldraw/Custom Parts/Parts on MAC. See this video for a guide of how to set it up in Studio 2.0 and use their rendering engine.
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