Using latest official release (6012)

In my scenario i have a UX where the users selects a Patient . After selecting the patient the Name, City, Phone and PatientID fields are auto-filled.
I have a live-linked embedded grid that shows some vision tests for that specific patient. The live-link works well.

In that embedded visiontests grid, i have a button to add a new vision test, which runs an action button to open the VisionTestUX in "new record" mode.

When the VisionTextUX pops up, i would like the Patient to be loaded ( here it should show PatientID, Name and Phone )

How can i do that?

Many thanks