I am attempting to setup a new dashboard where you click on one host and another widget updates to those values. It's working perfectly, but the Item History widget defaults to the selected host for the data to display when the dashboard is freshly loaded. Is there a way to use a generic item for the Items Value widget so it stays blank until an host is selected?
My Item History widget

Default behavior, no host selected

Host selected
My Item History widget
Default behavior, no host selected
Host selected