Unable to assign reversal movement type for 901
I want to assign a reversal/follow on movement type for 901 mov.type , but the view for reversal/movement type is in display mode . The 901 movement type is created when the implemetion done . Now we need to assign reversal for 901 . When I try to go to the revesal/follow on movement type, it is in disaplay .
could you please help me why the view in dialog structure in display , all other views are in change mode.