You can determine which Planning users are logged on to the current application, and how long since they accessed the application. Users are not listed if they log on through other applications such as Financial Reporting, Smart View, or third-party reporting tools.
You can view the percentage of supporting detail detection cache being used, to determine whether an appropriate amount of RAM is allocated. If the number is very low or high, consider allocating less or more RAM. A default value of 20 is stored as a Planning property (see Allocating Memory for Supporting Detail Cache).
To view usage statistics: