When I close Scene Layers view how do I get it back?
To get layers view back add a new tree view (either through main menu or by right clicking on the views tab) then right click on the newly added blank view and select "Manage Layers"
Same applies to Scene Objects view.
When I try to enter an angle parameter amount in Zookeeper I get a value different than what appears in 3dsmax's UI (for example, entring 90 produces 5156.62 in Max)
This happens due to the fact that 3dsmax uses radian representation of its angle values internally. Inside the UI spinners scale these values and represent them in degrees. In some cases Zookeeper is able to translate these values to degrees, however, in most cases it will display them as radians. Radian representation also helps with assigning controllers to control these values.
For example, consider using a cos(angle) expression using an angle. Using cos(1.57) will produce the correct results where as using cos(90) will give incorrect value. For your reference here's a quick degree-radian conversion table:
