For maintenance under the box head position, you should move the box of general workers position the electrical engineer (Mr. K. k-Toemsak Golf) because he ranks.
For maintenance work under the supervisor, you should move to a higher position of the general position Electrician (K. Mr. Toemsakdi K - golf), because he was promoted.
For maintenance supervisor position under the box you should move to the high box of general worker's position electrician (K. You damn titles. Kay - golf) because he was promoted.