Feature Image in Post Settings Configuraliton

Hi all, I installed Ghost from source and I am new to using handlebars and Ghost. In the Admin Post Editor I want to add the feature image to the post settings instead of selecting it and appearing in the post editor.

I removed the GhEditorFeatureImage tag in the editor and placed a GhImageUploaderWithPreview tag in the post-settings-menu. How do you configure this to upload images from files or unsplash? If I try to load one it just shows the progress bar.

Thanks in advance!