How to start print in Hbed center? and ..

[3drob 1]

Hello all,

I have Cura 3.4.1 and I have a Prusa i3 DIY
can someone tell me how to get the Nozzle to start printing in the middle of a heated bed?
my nozzle is not directly above the heated bed on the corner
The nozzle is standing
in the Y axis 22MM for the bed (on/in the front side)
in the X axis 10MM to the left next to the bed

 

other question?

probably in the G-code the Z axis
I would also like:
at the end of printing
That the nozzle is 100MM high,
now the nozzle stops in the low position
equal to the bed and I do not find that safe (in connection with glass clips that I have!)

 

friendly greetings from The Netherlands!
Rob.