When requesting a remote working request, you will see a dropdown menu under the Notes text field.

By clicking on this dropdown menu, you can choose how frequently remote work occurs.
You will have some preset options, however if you’d like to set up your own, click on Custom…

This will open up an additional menu on the right hand side, where you can choose how often the remote working is repeated, in days, weeks or months and also when it ends, never, on a certain date or after a certain number of occurrences.

Once you have entered in the details, click on Request event to submit for approval.