To edit the forms selected in your Skyslope Envelope, click the "send disclosures" button in the forms section of the envelope 

From there, the forms that have already been sent will be grayed out. To add new forms, select the "+" button next to the form(s) you need to add. To remove any forms no longer needed click the "-"

To initiate the changes, click "Send Forms". The next time the seller signs into their account, they will receive a notice that you have added or removed forms. The seller will be required to approve or deny the changes made. 

Once approved, any new forms will be added to the seller's dashboard to complete, and any forms removed from the invite will no longer appear on the dashboard.