Hi Sébastien.

Yes, it is possible. 

I see that you already have a direct reference to the “Abbonnements” table, so my advice to you is to use this link to speed up the use of your view. So.

Replace:

let me := this;
select Abonnements where Comptes = me

With:

'Historique des abonnements 1:N'

After that, you can hide this view, in the section:

'Afficher a chame seulement si'

by inserting this code:

cnt('Historique des abonnements 1:N') > 0

I hope this helps

Fabio
 

You can also do:

not 'Historique des abonnements 1:N'

This acts like a true/false. If there are any records then it is true if not then it is false.