openpublish imagecrop preset

Hi,

here is what i want to do :

I would like to change the Main and Thumbnail Image sizes for 'Article' (on the OP frontpage).

In ImageCache, i just add two new presets :

article_teaser350x100 > actions : scale and crop 350x100
article_full600x300 > actions : scale 600x300

My new presets are recorded with "normal" ("400xY" and "author_photo" are recorded in another mode).