Oops, I did forget. Thanks for the correction; "Day of the Dove" would seem to make it clear that one transporter console
can beam up at least nine people simultaneously - although one transporter platform
is only shown materializing five people at a time, while the others are "on hold", perhaps being interpretable as the combined use of two transporter platforms and their separate "hold areas" or buffers.
What might be the largest number of people beamed up or down at one go with UFP technology? Supposedly the entire Baku village was to go in ST:INS, and there were plenty of refugees inside the system in "Counterpoint", but the simultaneous materialization or dematerialization was not demonstrated in those cases.