Ducati Multistrada 950S 2019 Owner's Manual page 295

Fit the passenger seat on the motorcycle. Now the
seat is in a lowered position.
To raise the seat, remove them as indicated on page
290.
Remove the elastic support (1) from passenger seat.
Install the two supports (2) on seat, engaging tabs
1
(A) and (B) into slots (C).
Fig 250
C
C
A B
Fig 251
294