Is there any way currently to import from a single CSV file into multiple projects? For example, a CSV with 10 rows, 5 could be for one project, the others for a different project.
Unfortunately, there is no way to import to multiple projects at once.
I would recommend sorting the .csv and saving into separate files and then importing into the respective projects, or you could import all of the tasks and then sort using custom fields in the project and add the tasks to the new respective projects. You can do this easily in Asana by adding tasks to multiple projects, which makes it easy to move tasks from one project to the next. You can also multi-select tasks to do them in bulk.