1. How to archive your Initiatives?
To archive completed initiatives and keep your Initiatives Workflow from getting cluttered-> click on the Archive initiatives icon in the top right corner of your board -> select the initiatives you wish to archive. You can also create an archive version by clicking on the Create version link -> type the name for the version. This is optional, but it will allow you to search easily for archived initiatives -> Click on Archive Cards.
To search for archived initiatives or to unarchive an initiative -> click on the Show archived initiatives (the magnifying glass) icon on the top right side of your screen -> search in the Permanent archive by setting a date range or Browse the archive versions -> click on Unarchive Card to the right of the initiative you wish to restore and it will be moved back in the "Done" column of your Portfolio swimlane.