Free-electron lasers (FELs) are the most advanced class of light sources, enabling for a wide range of innovative experiments such as two-color pump-probe spectroscopy. For this experiment, it is required to control the temporal delay between two X-ray pulses. For this purpose, the soft X-ray Self-Amplified Spontaneous Emission (SASE3) beamline at the European XFEL is equipped with a magnetic chicane (MC) that delays the electron beam and, therefore, the corresponding photon sources. Using an optical delay line (ODL) would allow the implementation of two pulses crossed with zero-time as well as negative delay.