Potentially. You could increase the chance of that happening (and greatly
increase the chance that it does specifically what you want it to do if or
when it is implemented) by contacting Technical Support and giving them a
clear description of what you would expect such a "grouping" feature to be
able to do. If you do this they can capture that feedback and pass it along
as a customer request to the graphics developers.
I know your original message said you were trying to group lines together,
but is that all you would need such a grouping feature to do? Would you
need or want it to be able to group other type of graphics together (lines
with surfaces, lines with images, images with surfaces, etc.)?
You can send in your enhancement request to Technical Support using the form
linked to on this page: