Setting featured images for existing posts is possible, please follow the below method:
1. Please be sure to add your Stability.ai API key in the plugin’s ‘Main Settings’ menu -> ‘API Keys’ tab -> ‘Stability.AI API Keys’ settings field.
2. Go to the ‘AI Content Editor’ menu of the plugin -> ‘Editing Templates and Options’ tab -> set ‘Enable Featured Image Assignation’ -> Enabled
In the ‘Featured Image Source’ settings field, select ‘Stability.ai’. Also, you can configure and fine-tune the prompt for the AI image generator, in the ‘Prompt To Send To The AI Image Generator’ settings field.
3. Go to the ‘Existing Content Editor’ tab -> set up the parameters you want to run. These will be important, so they match the posts you want to edit. Be sure to set important settings like ‘Post Type’ and ‘Maximum Number Of Posts To Process’.
4. Run editing of existing posts using the ‘Select an action’ button from above the page.