Pour ceux qui ne reçoivent pas leur emailing, voici le contenu, un plus détaillé :

Lemur 4.0 update now on iTunes   In App Editor Lemur has evolved. Now you can design your templates on the fly without a computer in sight. The In-App Editor (only available for iPad) makes multitouch control truly improvisatory by letting you shape your controller the same way you shape sounds. Virtually every function of the desktop editor application is now available through an intuitive system of iOS menus and widgets. Best of all – it’s easier to use than ever. Skins Lemur now features three new skins in addition to the classic look. Choose the look that fits your style and get inspired. Coming early 2013 – LiveControl 2 Experience the ultimate Ableton Live controller, designed in partnership with master designer ST8. Improvise a riff on the Play page, then switch to the Sequencer page to edit the pattern. Choose a key and scale to guide your melodies and use Quick Chord to instantly create harmonies. Use the Modulate page to flawlessly map any parameter from any plugin to the MultiBall object and take advantage of Physics, LFOs and gesture recording. The Launch page gives you everything you would expect from a clip launcher, and more. We even integrated snapshots and morphing. LiveControl 2 will be a free download available in early 2013.   Liine make music apps and custom solutions for professional artists. Visit us at https://liine.net

L'éditeur sur iPad n'est pas assez précis pour moi, je n'ai pas vu l'éditeur de script/fonction et variables.

Mais beaucoup plus ennuyant, l'éditeur 4.0.1 plante qd j'ouvre mes anciens projets (win7 x64) !

Je viens d'envoyer un email au support, si qqn sait où télécharger la version précédente ?

EDIT : il y a bien les variables mais je ne vois pas comment modifier une fonction (locale ou globale).

Bon voilà le problème vient du skin "Pixel", si je mets le skin "Classic" plus de soucis, support Lemur rapide et efficace un vrai plaisir ...
Si utile à d'autres voici les trucs à tester en cas de problèmes :

Open the Editor and go to Settings, then the Lemur tab and select 'Classic' as the skin and deselect 'Always use Project skin'. Close and restart Editor.

Open your Project in the Editor and hit Shift/Command s to Save As and ReSave your work.

Open the App and go to Settings > More... and select 'Classic' as the skin and deselect Always use Project Skin.