Modify Tread in stairs tool

[Paopao]

Hi guys,
is there a way to modify the tread to whatever lenght I want in the stairs tool? I use an Italia version of Archicad 24 and the whole process is linked to a specifi formula (Italian: 2Heigh of Tread + Tread = 65): I haven't been able to modify the tread to 1 meter somehow so I have used a section morph and extruded it. Is there a way to do it with the stairs tool? Even if I set the maximun to 1m the stair is still linked to that formula.

Thanks
Pao

[Paopao]

I solved it. I didn't uncheck all the options above!