I started with the W-2 method, I entered the wage and the withholding then on line 13-B I checked the box and that created the form 2555, there non Part I,  I entered the address info, name of employer and his address, after that under Part I, 

1-Taxpayer pops up and I added his occupation,

5-c Self cause employer is a doctor

7- US Citizens

8-a answer is No

Part II: 

10- Date Bona Fide  09/18/2019   to 03/06/2021

11- checked d: quarters furnished by Employer ( he lived at ER House)

12-a No

13- a: No   b: Yes

15- c: No   d:No

Part III

16-  01/01/2020  To 12/31/2020

17- Germany

18- (a) Physical presence the entire year.

the rest is empty.