Add a standard (SO10) text to an S/4 adobe form that uses GW service

Hi,

I find many blogs that describe the process of adding a new field using the 'Custom fields and logic' application. However those fields have a miximum length of 255 characters.

I need to add an SO10 text, which is much longer than 255 characters.

In the older forms this was pretty easy using the interface, but now I don't find a solution.

The form I'm using is: SDBIL_CI_STANDARD_ES (FDP_V3_BD_STANDARD_GLO_GEN_SRV)

regards,

Robbe