Deleting entries

Hi,
I have created a bunch of roles that are given quite limited capabilities (in order not to complicate life for these users ?? ).
However, one of the tasks I would like the users with those customed roles to do, is deleting entries, when needed, in the forms they have permission to see.
The way it works now is that the only one who has the capability to delete entries, is the Administrator e.g. me.
I use “WPFront User Role Editor Personal Pro” to manage roles.

My question: which capability is to be enabled for the users with customed roles, so that they can delete entries in forms they have access to see?

The page I need help with: [log in to see the link]