A:AnswerDear customer, we do not recommend changing anything on the microwave. The trim kit has to be purchased separately. There is a little difference between the size of the trim kit and microwave in order to avoid any kind of heating issue. All the microwaves have their own match with a trim kit. For your product these trim kit models would be the perfect choice: NN-TK929SF ,NN-TK939SF.
A:AnswerThank you for your question. Yes, you can. Please refer to this link for more specs in regards to this ( page 24) http://help.panasonic.ca/PCS/OperatingInstructions/F00039U98CP_02_20150720.pdf#page=24