JLCooper MCS5 - Manual (Page 43)

Display Emulation Tab
If you have enabled Emulation in the current keyset, you can have MCS5 show timecode intended for the
emulated control surface..
Click on the Emulate Mode X Timecode Display checkbox to enable timecode display emulation.
Uncheck it to delete any function assigned to the display.
As mentioned earlier, if you want to show timecode, but sometimes need to see the button labels, you can
assign the Labels function to App Button 8. Whenever you press App Button 8, the button labels will be
shown. Releasing it will cause the display to show timecode again.
MCS5 User Manual
43