[Ardour-Users] percussion track on A3 ?

[fred]

Hi list,

have received a MIDI track which contains the drums for our next song, 
and like to edit it.

After some research in Ardour3, with right clic, exploring menus... 
can't find anything but the piano roll edit way.

Then I search on the site and find this old "news" topic : 
http://ardour.org/node/1162
It mentionned the adding of "percussion tracks", that will probably be 
the tool wanted.

Return in Ardour3, and can' find it :(

May someone here give a little help, please ?