How Come I Can't Add Multiple Projects To Organic Traffic Insights?

Users can only connect one Google Analytics account per project, so if you want to run multiple Organic Traffic Insights campaigns, you’ll have to create multiple projects.

However, if you want to change the property, Google account, or view in the tool, you can do this at any time with the settings gear at the top right of the report. Currently there is no limit to the number of times you change your property, account, or view.