You should be able to enable this using the following worfklow
The Route is used to sort jobs into different collect components
After the jobs are sorted you collect jobs until you gather the required number
The job should be released as a single group so you can gang them together
You may also want to put another release trigger (e.g. after waiting for n minutes) and then add a route component to route based on the release reason. This will allow you do automatically fall back to "plan b" in the event that you do not have enough jobs for the imposition.
In addition you may want to also check for manually released jobs and have those fall back to "plan b" . This will allow you to select jobs and push them along.
You could also route after imposition (leveraging the 'overflow' functionality). This would also let the jobs automatically fall back from the 10up layout to a 5up layout and only then fall back to a layout with 1 business card.
For the 10up imposition the key setting is the Page Order.
The job group page order will place each job in the group on it's own position within the layout.
This setting also requires use of the Collect Job Documents setting in the workflow
THe 5up layout would be the similar. However, in that case I am assuming you will want to repeat each of the 5 jobs. That should be done using 2 imposition stages.
Is there any way, by using Keywords in the pdf, to auto gang business cards on a sheet. For instance, for 1 name, I would put 10up in the pdf Keywords and then use the route component to route the 10up. Another name would be 5up on the same sheet and so on. Having trouble making it work.