Hi
Thanks for contacting us and sorry for the delayed reply.
1/ In easystore how to apply a badge only to a selection of products and not to all of them?.
As per my knowledge there is no deafult option to do that. You can also check this from here:
Badge Addon Settings
2/ Where and how to display the Weight and Dimensions of a product on the site (elsewhere than in the Description ot Features of course…)?
You can find it from the Product Page.
https://prnt.sc/__J8-xjATuVV
You can also change the unit from the settings.
https://prnt.sc/XCMRo5B4pYm5
3/ Is it possible to charge only for a deposit at the checkout (for instance 20%)?
Could you please explain it a bit more? In the meanwhile you can also check this link
Checkout
-Regards.