This article will summarize how you can add a worker to an existing form.
If you do not see the Add button in the Form Details page, this is most likely due to the timeframe at which you can add another signer. By default in Corfix you can only add another signer to the form within 24 hours of that form being sent. In order to change this setting follow the steps below;
My Account Details>Company Settings(Select pencil button)>Edit the hours in the Add Signers Window (Hours) field.
Don't see the Add Signer button? This may be happening because of an account configuration. This configuration can be found under Company Settings called "Add Signers Window (Hours)", below is video on how to set this up.
Once you configure a larger window you can go back to your form and add the signer!