Possible: View of some but not all projects
I have sets of projects, some personal, some work. Is it possible to query a view of just work versus personal projects? I seem to remember an older version of Todoist supporting this but can't figure out how to do it now.
Unfortunately, it's not possible to use project names within the search option, but we will consider adding such feature in the future. You're welcome to vote for this request in our Votebox: http://todoist.com/Vote/showProposal/49/
For now, as a workaround, if you don't want certain projects to be visible all the time, you could create a project above them and make sub-projects out of them. You could add an asterisk * in front of the name of the parent project to make it a project group and simply collapse it.
If you would also want to avoid the display of these projects on the "today" or "7 days" views, you could right-click on them and chose "Archive". Every project can also be easily unarchived anytime.