Installation of the add-in

Hi,

I would like to test the add-in "Advanced Formula Environment", but we are not allowed to install add-ins by ourselves on our computers. The IT team told me they have "pushed" the add-in for me on my laptop,. It's OK on admin side :

Unfortunately the button which is supposed to appear at the left of my "Home" ribbon isn't there. What should I do for it to appear?

Thanks,

Sylvie - Council of Europe - Strasbourg - France