[kdenlive] changing from lanscape to portrait

[jdd]

Hello :-)

I use almost only kdenlive for all my linear video editing.

I fail to find a way to rotate a video done with a vertical smartphone.

it's pretty easy with

ffmpeg -i 00024.MTS -vf "transpose=cclock" test.mpg

for example, but I would like to do the same from kdenlive.

I know I can rotate the video, I even can resize it to have all the 
image included, but it's still 1080 height, when I want 1080x1920 size 
(original is 1920x1080).

any hint?

thanks
jdd