Motion Guide Help Urgent Company Project

Hi Friends,
Could sombody please tell me how am i gonna loop within a particular frame layer without relying on the playback head.

There’s an attachment, could you guys just hv a look on how am i gonna make the arrows keep moving without needing to wait for the timeline to end.

Hope you understand and thank you so much.Please help asap cause this is a company project. Again, Thanks.

Regards,
Gary