Automatic JIT assignment group

We use JIT for tempory DomainAdmin / SchemaAdmin and EnterpriseAdmin rights. In the feature we wan't to add o other group to JIT.

Is it possible to automatic assign a right (group) when a user check-out a account?

The use case is:
User-X has no group assigned (in this example "DomainAdmin")
Use PAM to checkout this account
JIT assign automatic a group without check the checkbox in the check-out screen.

The idea about this is that the account is standard a normal user. The user has about 2 days a week the addiotional needed. So when the account is hayjacked during these 5 days it has normal rights.