Collapse tree any time a user does an action in the tree that would select an object; don't only do this on navigation changes, because this fails to detect occasions where user clicks the already-navigated-to object.
Directives
mct-scroll-xis an attribute whose value is an assignable Angular expression. This two-way binds that expression to the horizontal scroll state of the element on which it is applied.mct-scroll-yis an attribute whose value is an assignable Angular expression. This two-way binds that expression to the vertical scroll state of the element on which it is applied.