How to order references alphatically with endnote web and how to import new styles

I have been reading different forums regarding how to sort the references alphabetically but the options that appeared are not in my version of endnote web, accesing from my University. I haven´t found neither the AMA style so I tried to download styles from the JOSPT because this journal didn´t appear in the list, but when I download an archive .enl or .ens I don´t know how to import to endnoteweb in word (cite while you write plug-in)

The plug in givs me different options for different styles but I didn´t found an option of sorting alphabetically or using JOSP style, which requieres using AMA in alphabetical order

Look for JAMA – it should be there?  It is the AMA 10th edition.  

If not, unfortunately, you cannot add additional styles in the Endnote Basic/Online users:


Endnote online: Creating new output styles or modifying existing styles

If your Basic Endnote access is provided by a university, there may be an administrator that can add styles.