Sure - workpath is shorther in case of "custom toolbars" , but in such cases need to close "Sketcher" and open afterwards (otherwise toolls are grayed out - you can try add button "Draft->move" into global custom toolbar and try it inside sketcher)
I'm not saying that is not impossible to do, but only that is suboptimal, and would be nice to add features for improvements in sketcher.
also possible as draft+sketch must be combined in one workspace...