Persons with this permit are allowed to work in the Netherlands without the need of constraints. Consequently no work allow (in Dutch: tewerkstellingsvergunning or TWV) is needed.  The desktop picture lets you try out Ubuntu with out changing your Laptop or computer in the least, and at your option to https://www.ecom-group.com/training-events/sap-successfactors-employee-central-core-training-thr81/