This idea has been merged into another idea. To comment or vote on this idea, please visit KF-I-4210 Multi User Access with Specified Permissions.
It would be a good idea if you could compartmentalise part of Kashflow. e.g. a sign in just for sales staff so they could only access customers and purchases and not the company bank details and wages paid to other members of staff. You could still have a main user that can access all areas.