everyone who has used the advanced design modules yet (Relations) and created a long list of relations will know how annoying (even frustration) it can be if you need to search for that 1 relation that you want to modify. if your relation set i well build, then you mostly do not have to change more then a handfull of relations, but you need to search for these reltions every time again when you want to change them.
at today there is no possibility to mark these relations as being more important.
There is no possibility to put them on the top of the list.
there is no possibility to filter out some sorts of realtions, so for example coincident relations are not shown.
this is defenitly not an intuitive UI.
the idea that I suggest goes even further. it would be great if PTC develops a sort of browser where the user could manually add his "favorite" relations.