This portion of the command_key_definition identifies which type of RIN List (possibly empty) is defined in next key. The pulldown is limited to only it's valid values. They are defined below:
| RIN Type | Defines RIN list as... |
|---|---|
| 'R' | Restriction list ("Full" Matching) |
| 'I' | Inclusion List ("Full" Matching) |
| 'N' | Negation List ("Full" Matching) |
| 'r' | Restriction list ("Single" Matching) |
| 'i' | Inclusion List ("Single" Matching) |
| 'n' | Negation List ("Single" Matching) |