A dynamic family

This family builds families dynamically. >>> [!note] Informations **dyn*val1***
**dyn*val2***
`basic` **Identifiers**: (from an undocumented variable)
- val1
- val2 >>> | Variable | Description | |----------------------------------------------------------------------------------------------------------------------------------------------------|---------------------| | **dyn*val1*.var**
**dyn*val2*.var**
[`string`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `basic` `mandatory` | A dynamic variable. |