To track a parlay, add multiple bet selections to your bet slip as you normally would.
Once the bet selections are added to your Betslip, select the Parlay option at the top right of your Betslip. This will transform the Betslip from all single bets to a parlay.
If you would like to remove a bet from the parlay, you are able to toggle between selections with the grey arrows next to the Compare Odds button. You can remove a bet from the parlay by selecting the trash icon at the top right of the Betslip.
After making any necessary adjustments, you can then successfully track the parlay by clicking Save All Edits, then Track Paraly.