How to change preferences in CWYW?

Could someone help in telling me how to select the endnote application, instead in endnote web application, which is the default option in my cite while you write preferences? It is in grey and I cannot select it…

I do have my own endnote database in my computer and I’m not able in word to select any of its references. When I’m in the word program, it’s only the endnote web possibility which is given to me…

Thanks a lot,

Mariane