Dear Aj12,
Here are the answers:
Is it possible to add a slow scrolling image as opposed to a parallax?
This is not possible as well. You can add animations to images or content using the Plugin.
Plus can you use the plugin on a dashboard as opposed to adding it through the text bar?
I do not understand. You can use the plugin in Posts, pages, and you can add animation classes to your widgets by creating animations from here: https://downloads.eleopard.in/class-generator-wordpress
and then paste the animation classes in “Animate It Classes” box added below the widgets. you can add these classes on any widget with Custom CSS classes box as well.
I am wanting to create the plugin separately and then embed the shortcode into a widget if possible ??
Do you mean creating the Short-codes using Post/Page, and then pasting it on the widget? If so, yes it is possible