How to change the width (number of columns) of the existing form?

I have a form that has 10 columns. I want to make a 75:25 layout, in which case 16 columns is better. How can I change the number of columns to 16?

At this point, changing the number of columns can only be done in the source (‘Żródło’ tab).
To do this, you need to change:

  • defaultFormColumnNumber
  • number of columns for each page

Before changing the width, I recommend to arrange the components one under the other and expand them to the maximum size.