yatch 80 metri 177 prims d1 d2 d3 d4 to open close doors

yatch 16 mt x 80 mt 177 prims ,very elegant and 2 floors
static,no fornitures, yes mod yes copy.

equiped with 4 stairs doors sliding and 1 traditional door

instructions: to open and close the 4 stairs doors write in local chat d1 d2 d3 d4