I installed MSP project interface with schedule connect and still only seeing Open Workbench in the Open in Scheduler dropdown
In order to see Microsoft Project, the Scheduler Format for the project has to be changed to Microsoft Project. One option you can do to change it for one project is add the Scheduler Format attribute to your project list page, then change the scheduler to Microsoft Project there.
Here's an article that provides more details and options to set up the scheduler format: Clarity: How can you change the default scheduler - CA Knowledge
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