Cakewalk is not updating Control Surface part since long time. I guess that is not financially feasible. Mackie plug-in is open source now, in case you write something yourself (for Windows, you need paid version of Studio), you can fix it yourself (several lines to add, PC EQ is no longer fixed at the first position, the modification should just "find" it).
PC is not supported directly by surfaces. The "latest" approach (used in VS-700) was ACT. So any surface which can do ACT (almost any plug-in except Mackie...) can control PC at the same level.