You can save a dashboard as a template at a location of your choice, including iCloud Drive, Google Drive, Dropbox or any other third party collaboration app that supports exporting files.
Tap the ‘Share’ button inside the dashboard, choose ‘Save as Template’. This pops up the file location interface. Navigate to the location where you’d like to save the template file and hit ‘Move’ on the top right corner. If you’d like to save to another location, like Dropbox or Google Drive, tap the name of the location in ‘Locations’ list to choose your preferred location.
You can share the saved dashboard with your colleagues whenever you want using Messages or Mail app.