  In this study, we investigate the dynamics of tunable spin-orbit-coupled
spin-1 Bose-Einstein condensates confined within a harmonic trap, focusing on
rapid transport, spin manipulation, and splitting dynamics. Using shortcuts to
adiabaticity, we design time-dependent trap trajectories and
spin-orbit-coupling strength to facilitate fast transport with simultaneous
spin flip. Additionally, we showcase the creation of spin-dependent coherent
states via engineering the spin-orbit-coupling strength. To deepen our
understanding, we elucidate non-adiabatic transport and associated spin
dynamics, contrasting them with simple scenarios characterized by constant
spin-orbit coupling and trap velocity. Furthermore, we discuss the transverse
Zeeman potential and nonlinear effect induced by interatomic interactions using
the Gross-Pitaevskii equation, highlighting the stability and feasibility of
the proposed protocols for the state-of-the-art experiments with cold atoms.
