Sometimes different settings can have the same effect. It is good to practice with the different timeline settings to get a full understanding of how they can work together (and apart).
The images below (Fig. 1 & Fig. 2) show the demo @MarkHunte linked to “Oil.hype”. Different settings yielded the same result.
Fig. 1 “Loop Oscillate” timeline (time “0.00”)
“Start Timeline…” used in place of the original “Continue Timeline…”
Note that the optional checkbox “Can restart timeline” disappears when using “Start Timeline”.
Fig. 2 “Loop Oscillate” timeline (time “2.00”)
“Can restart timeline…” unchecked in the “Adjusted Setting” version.