Hello,
the cranes work with a Transport Controller and can be used with Process Modelling like resources or robots.
So one solution would be to set the pick and place time directly in the TransportLinks (by checking “UseCustomParameters” and then changing the values). You can put different products with different times in different Flow Groups and set the pick and place times accordingly for each Flow group.
Otherwise this topic could maybe interest you: Crane movement without Product - #22 by Tilma