Sequencer

Hello! I have a Twido PLC and need sequence 12 steps. The twido have a function called Drum, but we only can do a sequence with 8 steps.
My project is a cyclic sequence with 12 steps, actioning only one out at every step.

Thanks!!!

Use one drum to execute the first seven steps, then use the eighth step to activate a second drum.

Execute the remaining 5 steps on the second drum.

When the second drum is finished, reset both drums.