3d View and Angles for Camera - Global

I work with 4 windows Top-Front-side and 3D

1 )

The angles of the Gobal system are with the Z value pointing up

but if you touch the camera view ( Num 0 ) and then comback to the 3D view the angle in 3D window are the one for the camera and Z is not up anymore

How do you reset the angles of the 3D view to show the Z value up vertical?

2 )

how to change the angles of the camera to have the up arrow pointing toward up - same as Z value

Tanks & salutations