Hi @Stephen_Pinn, welcome to SharpTools community and glad to hear you liked SharpTools. See below for my comments.
You can manage(edit and delete) your media, calendar, hyperlink and newsfeed resources in the “Manage Resources” page. You can navigate to the Manage Resources page from the user dropdown menu at top-right.
Download the attributes of a dashboard is not currently supported, and I can understand the work needed in order to keep dashboards “fit” on different sized devices when new things are added. We have received interests for a “fixed canvas” layout design, so please voice your comments in the thread as it is important for us to prioritize the tasks.
That being said, I’d suggest you to edit the dashboards for different sized devices by following the tricks in the thread below. Though you are still likely going to copy the main source dashboard as the start point, but it is much easier to edit the dashboards for the other devices on a PC/Mac, instead of on the tablet device itself. So using the trick below may make it easier for you to update multiple dashboards in the same time.