1 ) In attached image I want to show Room Names & its Area ( or Zones tag )
I am not aware of any automatic way of displaying the room names and areas from Zones in 3d, what I can suggest as a work around is to use the 3d Text object from the object library to display room names and areas.
ArchiCAD since v9 to latest
iMac, Windows 10
This is a workaround, use the Grid Element Tool's ability to project normal 2D text into 3D projection.
Open the Grid Element Tool, turn off all unwanted lines. You can't get rid of the marker symbol so change its size to 0.1 and change the color to something similar to your floor color in 3D (that sort of hides it), then type in the room name text. Of course you can cause the text to "float" by changing the elevation to project zero. Floating the text allows you to label furniture, equipment, etc.
In the 3d View tab - turn the Grid line to "show as line" and turn off the "text follows view".
If you like this technique, don't forget to save these settings as a favorite.