Yes, this can be done from the Control Surface setup Window in Logic. Just put the control surfaces in order from left to right in line with how you want them assigned. For example put a Logic control first in line, then to it's right a Logic Control XT, then to its right a Tascam DM24. This tells Logic to assign the Logic Control to the first 8 faders, the Logic Control XT to 9-16 and the Tascam 17-32.