In the Signature required section:
1. Select the Set signature collection order check box. Three points and an order number will be added and the signers will be ordered progressively.
2. Hover over the dots next to a signer's number to drag up or down according to the order in which you want the signatures to be collected
Remember!
You can have more than one signer in the signature staging:
2 signatories on step 1,
3 signatories on step 2,
etc.