You may be able to make those settings by the Meridian Control App. Unfortunately I do not currently have a MC200 on hand to verify and the user manual is sadly quite brief. You can however set EBA (and EBC) off on relevant Meridian products via RS232 and a terminal program.

Same can be done with most SpeakerLink devices. Once enabled on the M6 it should stay that way until you go back and disable the function.

Control:PC is already on the MC200 for download. It can be accessed from the MC200 web interface.

www.cmbintegrations.com
One step from the Presidency
#1 Trinnov Altitude 32-8-16, 271, 8000XE, 7200SEHC, 7200.2, Seaton F18, JL Fathom F113, Revel w990's, Kef R7, ATI 528 Amp, JVC RS4100K, SI screen. Roon Nucleus+, Eno AG, Eno M link, 218.
#2 Mark Levinson No5105, Ayre VX8 and CX8, Vandersteen Treo CT, Preamp varies.
#3 Meridian Ellipse