This approach requires Pinegrow Web Editor PRO 5.95
To add an existing stylesheet or script to the page, simply drag it from the Project panel to the page view:
Files that can be dragged to the page have icon displayed next to their name.
<body> element by default. To change that, use the Tree panel to drag the script element to the
<head> of the page.
Create a new file
If you need to add a new file, create it by right-clicking on the project name or project subfolder and choose “Create new file” command from the menu.
Enter and confirm the file name:
Next, drag the newly created file to the page.
Editing the file
To edit the file click on the file in the Project panel to open it in the code editor:
Although this works for both stylesheets and scripts, we recommend that you use the Style panel to edit stylesheets.