I found a strange issue followed;
I want to know if it is normal or a bug...
I am using 'hasSpace()' and unchecking 'Storable Slots' like attached capture.
And I set the start level to '0' and uncheck the 0 level as 'Storable Slots'.
And the result of model is the items not to be allocated in the level 1.
But when checking level 0 as ''Storable Slots', items put in the level 1.
It is normal or strange? A bug? or I am confused?