Creating the ACF Relationship Field
Relationship Fields are a powerfull functionality within Advanced Custom Fields. Thanks to Rexy, you can use that power and combine it with the Post Widget of Elementor.
- Search for Custom Fields in your menu panel 
- Click Add New 
- Give your Field Group a relevant name. 
- Click on the + Add new button and give your ACF Field a name. 
- Scroll down and select Relationship as type of your ACF Field. 
- You will see some fields appear that are related to this funcitonality. Choose the right filter for you field and choose where you want your Relationship Field to appear. 
- Hit publish.