Ability to view records with no date entries on timeline/gantt/calendar

For context, we are building a job scheduling system and have a timeline grouped by engineer showing the jobs allocated to them.

As new jobs come in, they’re not likely to have dates allocated yet and we’d like the team to be able to work entirely from the timeline view, what would be ideal is if there could be a button at the top right (next to where you select day/week/month view) that shows/hides the unallocated jobs in a sidebar and these can then be drag&dropped directly onto the timeline to quickly assign the engineer and date.