Here the modification to the upper part gearbox to allow multiple actions.
Vanilla:
Modified:
(Loose green parts is the parts list, green parts in the model are the additional pieces. Loose parts in original color are not used anymore)
lxf files:
https://drive.google.com/file/d/1WPTM28PQc7nIOcpuupZDLHjGGMzDrI_H/view?usp=sharing
https://drive.google.com/file/d/1CcgULXrtptGdrvjKMYZ2vXmWaafTDAM-/view?usp=sharing
Please give some feedback what you think of this