- Create an un-managed Solution and add your system Dashboard to it.
- Next, export the solution (as un-managed), using default settings.
- Now, extract the exported solution’s zip file.
- Open the Customization.xml in your fav. editor.
- Edit the XML file and add the line with the filters JSON
- Save the file, pack the files back to a zip package.
- Import the Solution back in Dynamics 365 CE, and Publish customizations.