@StevenLauretti I think this should be possible as being described in the FAQ. You might just give it a try with 2 or 3 users on a system. the folder with the KNIME software itself would have to be write protected. You might have to adapt some settings, but from what I see from the start it might as well work from the beginning.
And they cannot use the same knime-workspace for different people, every user would have to use their own one (typically).
Just to be clear: you might have the same software (version etc.) but you can not use the same workspace if you use the KNIME basic version. The KNIME server will help you with that (sharing, executing and versioning workflows).