I wonder if it is possible using a custom form for field calculation to be carried out by means of a calculate button.

I have 4 input fields, I enter in two fields manualy a number, after pressing the button the rest of the fields are calculated.

Example:

Pulse: 100-> By user
average:-> calculation of Pulse/3 
Steps: 234-> By user
quantity:-> calculation of Average * Steps 

Is this possible to make with QT such a form?