I originally posted on this previous question, but now posting as a new question:
I would like to have a (new) dashboard set as home.
This dashboard should have dashboard parts from two different apps.
However, the dashboards from the app do not have the option to change permissions.
So what has to be done?
If you really would like them as-is and don't need to modify them in any way, then just create a soft link like this:
ln -fs $SPLUNK_HOME/etc/apps/<source app>/local/data/ui/<source dahsboard>.xml $SPLUNK_HOME/etc/apps/<dest app>/local/data/ui/
From then on, any time the source app dashboard changes, your link to it will change automatically, too.