Item Variations settings

Item edit form:

• On Item Variations tab added Select Item Settings block:
  •  contains checkboxes listed below:
    • “Show Select Item”:
      • by default unchecked -> in Item Details pop-up “Show Select Item” field hidden. On the Item Variation tab “Select Item” checkbox is disabled;
      • if the checkbox is checked ->  display in the Item Details pop-up “Show Select Item” field;
    • “Select Item is required”:
      • by default unchecked;
      • if the checkbox checked -> in the Item Details pop-up “Select Item” field is required, and select Option button is disabled.