2) after changing "floor plan cut plane" parameters and closing it , it dont save settings and after switching stories I have to adjust cut plane over and over again.
This is again a case of differences in the concepts of Revit and ARCHICAD.
In Revit, everything is a View, with its settings stored, so every time you activate a View, it will be displayed with its stored Settings or the settings stored in the View Template applied to the View.
In ARCHICAD, you have the concepts of Viewpoints (like Floor Plan, Section, 3D, etc.) and Views.
At any given point, a Viewpoint is displayed with certain View settings. There are "Global View Settings", which are just the current View settings (like Scale, Layer Combination, Floor Plan Cut Plane Settings, Model View Options, Renovation Filter, Graphic Overrides, Dimensions, etc.) the current Viewpoint is displayed with, and "View Settings" are those settings that are stored with saved View.
Views are defined as Viewpoints with a set of View Settings stored with them (so a View in ARCHICAD is actually the same as a View in Revit), so when you activate a View in the View Map of the Navigator (like Barry showed you), the settings stored in the View will be restored and you will get the exact representation that you saved previously.
However, this is not the case when you are not activating (restoring) a View, but simply switching from one Viewpoint to another in the Project Map of the Navigator, or when you just go up and down Stories, or when you switch back and forth between the Floor Plan and the 3D Viewpoint. In these cases, the so-called Global View Settings stay in effect. This is why you experienced this behavior.
This is an important concept to grasp early on if you do not plan to pull your hairs out because it is working so differently from Revit.
By the way, Revit also has something similar, not exactly the same, it is called Temporary View Properties or something, where you can actually temporarily alter the settings of a View without modifying the settings of the View Template applied to the View.
As I said, not exactly the same, but similar in that you are seeing a state that is not stored in a saved View.
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