Console title vs tab label
There are two different things.
Well, you can set it from ConEmu task, but that title will be overrided/changed in the most cases by your shell.
title 'Your cool tab' & cmd
By default it shows console title with console number as prefix.
It can be configured by templates on the
Also, it can be renamed by user (Apps+R or tab menu).
And of course it can be specified from your task.
Read wiki NewConsole switch
cmd -new_console:t:'Your cool tab'