I believe it would be very helpful to add a "quick select" option, that would allow you to not only select objects on a certain workset, but of the same type, materials, height, linetype, etc.
It would make building movements or construction adjustments quick and easy if you could, for example, "select all walls that have brick as a material" and then change that brick to poured-in-place concrete or something.
Another example, "select all curtain walls that are 4' in height" >>> "change to curtain wall type "x".