Stairs: how can I make my landings overlap the supports?

[raphael.oertelWSUX5]

I have created an industrial type stairs with steel supports and steel grid landings.

Got the landings between and above the supports, but not overlapping the support (landing on top of support) 

Does anyone have an idea how to get there?

[RDAOU]

@raphael.oertelWSUX5 

Select the stairs >> edit type and change supports (Left and right)  to Carriage 

[raphael.oertelWSUX5]

I works, but the support type changes to rectangular where I want it to be a steel C-profile (UNP). 

I can't change the profile afterwards, or am I missing something?

[RDAOU · Accepted solution]

@raphael.oertelWSUX5 

Unfortunately carriage type stringers can only be rectangular; hence you either leave it rectangular and add a detail component of C UNP in section views or Model the stair without the OOTB stringers and add Beams separately 

[raphael.oertelWSUX5]

Thanks, another workaround would be to add a floor that works as a landing. I think I can turn off the landing and keep the supports in the stairs itself.