If you tick the "Never ask question anymore" option this dialog box will no longer be proposed.

The D_SET_ALLOW_PART_DEFINITION_NOLONGER keyword allows to manage this dialog box displaying.

D_SET_ALLOW_PART_DEFINITION_NOLONGER<tab>1 : the dialog box is not displayed.

D_SET_ALLOW_PART_DEFINITION_NOLONGER<tab>0 : the dialog box is displayed.