Q4. Why can't i sometimes move a part by the Compass?

• Sometimes when we drop the Compass onto the part or other part of the same level, the Compass will be grey, not GREEN. We cannot drag the part by the Compass. It is because its parent has not yet been activated.(Fig.1)

• To move the part, always ensure that its parent product (upper level) is activated. If not, double-click the parent and single-click the part (Fig.2)

• After that, we can move the part by the GREEN Compass (Fig.3).

(Fig1)

(Fig2)

(Fig3)