Yes, it is possible

this is good news. Can you explain or show me where this is done because I haven't found it.
Thank you very much,

Just try the periodic meeting feature...
or RTFM

Hello,

Here are the possibilities of periodicite that I have, I did not find any place to add it.
herewith the screen proposing the periodicities
Thank you 

And you did not try to select "same day of each month" ... 

Hello,
I'm having trouble expressing myself. Can we change the meeting schedule? For example, what if I want a meeting every 2 months?
Thanks

Bonjour,
J'ai du mal m'exprimer. Peut-on modifier les periodicites des reunions ? Par ex, comment faire si je veux une reunion tous les 2 mois ?
Merci

Really ?
I guess you did not just try...
Here are 2 exemples ... 

I just figured it out. Thank you.

Je viens de comprendre. Merci.