Use the Nintex Workflow designer to create workflows and edit existing workflows. You can access the Nintex Workflow designer from a SharePoint list, document library, site, or the Nintex workflow inventory page.
To create a list workflow
In the List or Library tab, in the ribbon, click the down-arrow for Workflow Settings and then select Create a Workflow in Nintex Workflow.
If the Select a Workflow Template dialog box appears, you can choose to either select a template or start with a blank canvas.
To create a site workflow
Click the settings icon () on the upper right, select Nintex Workflow, and then select Create site workflow under Nintex Workflow.
To edit an existing workflow
Click the settings icon () on the upper right and then select Nintex Workflow to display the Nintex Workflow for SharePoint 2016 page; under Nintex Workflow, click Workflow Inventory.
The workflow inventory page for the site or site collection appears.
Under the Workflow Name column, click the name of the workflow that you want to view.
A preview of the workflow is displayed.