You can import filters either from filter export files (FILTER/AMC) of a previous ARIS version or from filter files of the current version. These are automatically created when you export a filter and contain all user-defined method extensions of the tenant from which the filters were exported.
Warning
If a filter with the same GUID already exists, it will be overwritten. To merge filters first duplicate the current filter and import the older version of the filter. The two version can be merged.