Keynotes need to become available to a multi-user workshared environment from within Revit. For MEP we often have multiple engineers on projects and we have to fight with access to the single keynote file. Our file system is on Dropbox, so we quickly see conflicted files. We attempted a multi-user accessible work around with Google Sheets and exporting to tab-delimited, which is ok. It just adds steps. We want to minimize steps that could be forgotten.
I'm aware there's Keynote Manager by Revolution Design. We already pay for 3 other toolsets. It would be most excellent to have this built-in.