[suse-autoinstall] Installation in already created partitions

Hello everyone. It seems that autoyast2 have several lacks in deleting and creating partitions when installing SuSE. So, I wonder if it is possible pre-create partitions before (for example, with fdisk) and specify which partitions to use (to format and install) in the control file. How (an example would be really appreciated!)? Thanks in advance. --------- Fermín