NAV 2017 - Cronus DB Problem

Hi all,

i've just install nav 2017 (italian) on my development server. i have a problem: in table 27 (Item) i have a field in SQL DB call "Has Sales Forecast" that i haven't in Development Evnironment.

Also, i have 5 tables thant i haven't in Development Evnironment:

[CRONUS Italia S_p_A_$Item Sales Forecast]
[CRONUS Italia S_p_A_$Item Sales Forecast Parameters]
[CRONUS Italia S_p_A_$MS - PayPal Standard Account]
[CRONUS Italia S_p_A_$MS - PayPal Standard Template]
[CRONUS Italia S_p_A_$Sales Inventory Forecast Setup]

What are this field/tables? Why Cronus DB has this objects in SQL and he hasn't in Development Evnironment? They are Italian objects or WW objects?

Thank you