o display the registration form first when clicking on the icon in the header that shows the Register/Login forms, follow these steps:

1. Log in via FTP and access the wpresidence/js/control.js file.
2. Edit the control.js file. If you are using theme version 4.22, navigate to line 1180.
3. add

jQuery('#widget_register_topbar').trigger('click'); as shown on this screenshot:

After you save the edit via FTP, you will see the register modal first like this

For older theme versions, the code was like this

Helpful links

Technical How to: Child theme

If you use minify option in the theme options check this help:      How to make child theme changes to work with theme Minifiy option enabled